US 5768384

Summary of US Patent 5,768,384

Based on the provided patent text and public records, here is a concise summary of US patent 5,768,384.

• Title: System for identifying authenticating and tracking manufactured articles
• Assignee: Pitney Bowes Inc.
• Inventor: William Berson
• Filing Date: March 28, 1996
• Issue Date: June 16, 1998
• Abstract: This invention relates to a system for identifying, authenticating and tracking articles of manufacture throughout their manufacturing and distribution channels. The foregoing system utilizes: manufacturing meters that are located at authorized manufacturing locations and produce encrypted data that is uniquely associated with each manufactured article; a printer located at the authorized manufacturing locations so that the printer will print the information encrypted by the meter, which encrypted information is affixed to the manufactured article; a data center coupled to the manufacturing meters and located at a site remote from the manufacturing meters; means for producing information that identifies the manufactured articles; and a plurality of means located where the authenticity of the manufactured articles are checked by comparing the encrypted information on the article with the information produced that identifies the article.

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Plain-Language Overview of Independent Claims

The patent asserts two independent claims which define the core of the invention: one covering the system (Claim 1) and one covering the method (Claim 19).

Claim 1: The System

In simple terms, Claim 1 describes the physical components of an anti-counterfeiting and tracking system. The system requires:

1. A Secure "Manufacturing Meter": A specialized, secure device located at an authorized factory. Its job is to create a unique piece of encrypted (coded) information for each product made. This information is tied not only to the product but also to the specific person who operated the manufacturing equipment.
2. A Printer: A printer connected to the meter at the factory. It prints the unique encrypted information onto a label or tag. This tag is then attached to the product.
3. A Way to Get Product Information: A means of generating identifying information about the product, such as from an invoice, a shipping manifest, or a customs form.
4. An Authenticating Device: A device (like a scanner) that can check if the product is genuine. It does this by reading the encrypted code on the product and comparing it to the information from the associated document (like the invoice). A match confirms the product is authentic and in the correct supply chain.

Claim 19: The Method

This claim describes the step-by-step process for using the system to determine if a product is authentic and correctly described by its associated paperwork. The method involves:

1. Producing and Attaching an Encrypted Code: Generating a unique, encrypted code that is tied to a specific manufactured product and the equipment operator, and then placing this code onto the product itself.
2. Documenting the Product: Separately creating a document or record (referred to as a "medium of expression," which could be paper or a digital file) that contains information about that product.
3. Encrypting and Attaching a Second Code: Encrypting some of the information from the product's document and placing this second encrypted code onto that same document.
4. Comparing the Codes: At a later point, comparing the encrypted code on the product with the encrypted code on the document.
5. Authenticating: Based on whether the two codes match or are correctly related, a determination is made about the product's authenticity.

No known litigation involving US patent 5,768,384 has been found.

As of April 28, 2026, a comprehensive search of publicly available patent litigation databases and court records has revealed no instances of litigation involving US patent 5,768,384.

Searches were conducted on platforms including the Unified Patents Portal and the United States Court of Appeals for the Federal Circuit (CAFC) dockets, as well as general searches intended to capture any filings in the Public Access to Court Electronic Records (PACER) system. None of these inquiries produced any results indicating that US patent 5,768,384 has been the subject of a patent infringement lawsuit or any other legal dispute.

The initial search for "PTAB US5768384" did not directly return any PTAB proceedings for this specific patent. However, the search results mention IPR2018-00127 and Unified Patents. The first search result is a "Petitioner's Request for Refund of Post Institution Fees" for IPR2018-00127, but the patent number mentioned in that document is 6,202,150, not 5,768,384. This indicates that IPR2018-00127 is not related to the patent in question.

The other search results discuss Unified Patents generally or their portal, but do not specifically link to any PTAB proceedings for US5768384.

Therefore, based on the provided "PTAB proceedings on file" block and the web search, there are no known PTAB proceedings for US Patent 5,768,384.

Proceedings overview

There are no known AIA trial proceedings on file for US Patent 5,768,384. This means the patent has not been subjected to IPR, PGR, or CBM challenges, and all claims remain untested by the PTAB. This gives a defendant no specific defensive posture based on PTAB invalidations; any defensive strategy would need to focus on prior art or other arguments outside of prior PTAB decisions.

Strategic summary

As of May 23, 2026, there is no public record of any PTAB (Patent Trial and Appeal Board) proceedings challenging US Patent 5,768,384. This implies that all 22 claims of the patent remain untested by the PTAB.

The absence of PTAB activity suggests a few possibilities:

• The patent may not have been widely asserted in litigation, thus not drawing challenges.
• The asserted claims may have been deemed robust against common prior art arguments that would typically succeed in an IPR.
• Potential defendants may have opted for settlement or other strategies instead of pursuing PTAB trials.

Given the patent's expiration in 2010 due to failure to pay maintenance fees, it cannot be asserted for infringement occurring after that date. This significantly limits its current enforceability, which would inherently reduce the motivation for any party to file new PTAB proceedings against it. However, PTAB challenges can sometimes address past infringement claims.

Recommended next steps

If you are a defendant facing assertions of US Patent 5,768,384, it is crucial to note that the patent expired on June 16, 2010, due to non-payment of maintenance fees. Any alleged infringement must have occurred before this date for the patent owner to have a valid claim.

Given the complete absence of PTAB activity, there are no claim-level invalidations or affirmations from the PTAB to leverage defensively. A defense would necessarily involve a comprehensive prior art search and analysis independent of any PTAB record, potentially leading to a de novo invalidity challenge in district court, or leveraging the patent's expired status.

Since the patent is expired, a primary recommendation is to ascertain the dates of alleged infringement. If the alleged infringement occurred after June 16, 2010, the patent can no longer be enforced.

Inventors

The sole named inventor is William Berson. He was employed by Pitney Bowes Inc. at the time of filing, as indicated by the assignment of his interest to Pitney Bowes Inc. on March 25, 1996, just prior to the patent's filing.

Original assignee

The original assignee, named on the issued patent, is Pitney Bowes Inc. They are a well-known operating company primarily engaged in providing mailing, shipping, and e-commerce solutions, including franking machines and related digital services. The technology described in US 5,768,384, concerning secure identification, authentication, and tracking of manufactured articles, aligns with their core business of secure printing and data management, exemplified by their existing mail processing and franking systems. Pitney Bowes Inc. remains an active, operating company as of the current date.

Assignment timeline

Based on a search of the USPTO Patent Assignment Search database (https://assignmentcenter.uspto.gov/), only one assignment record has been found for US patent 5,768,384.

• 1996-03-25 (executed) / recorded 1996-03-28 — Reel 007899/0645
  • Conveyance: Assignment of Assignor's Interest
  • Assignor: Berson, William
  • Assignee: Pitney Bowes Inc., Connecticut
  • Correspondent: Robert H. Hosick, Esq. Pitney Bowes Inc. 35 Waterview Dr. MS 26-21 Shelton, CT 06484
  • Context: Original assignment from inventor to the corporate assignee.

No other post-issuance assignments for this patent are recorded with the USPTO.

Timeline diagram

timeline
    title Ownership of US 5768384
    1996 : Filed by Pitney Bowes Inc. (assigned from inventor)
    1998 : Issued to Pitney Bowes Inc.
    2010 : Patent expired

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. The patent was assigned from the inventor to Pitney Bowes Inc., an operating company. No transfers to shell entities are recorded.
2. Known asserter in the chain — Not present. Pitney Bowes Inc. is an operating company and not listed as a known patent asserter (NPE).
3. Repeat correspondent across the chain — Not present. Only one assignment is recorded, handled by an in-house counsel for Pitney Bowes Inc.
4. Cascading transfers — Not present. Only a single initial assignment is recorded.
5. Pre-litigation transfer — Not present. No litigation has been identified, and no transfers occurred prior to any such litigation.
6. Bankruptcy fire-sale — Not present. Pitney Bowes Inc. has not undergone a bankruptcy fire-sale of this patent.
7. Privateering — Not present. There is no evidence of a transfer to an NPE to assert on Pitney Bowes' behalf.
8. Defensive aggregator (anti-NPE) — Not present. The patent was not transferred to a defensive aggregator.

Verdict

Insufficient data. The only recorded assignment for US Patent 5,768,384 is the initial transfer from the inventor, William Berson, to the original assignee, Pitney Bowes Inc., on March 25, 1996, recorded on reel 007899/0645. There are no subsequent transfers or other events in the assignment chain to suggest any NPE activity. The patent remained with its original operating company until its expiration.

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USPTO Assignment Search for Patent 5768384. https://assignmentcenter.uspto.gov/

An analysis of the prior art cited during the examination of US patent 5,768,384 reveals several key references that inform the scope and patentability of the claimed invention. The following patents, cited by the USPTO examiner, are the most relevant in assessing the novelty of the claims.

Prior Art Analysis

The core of US patent 5,768,384, as detailed in its independent claims (1 and 19), lies in a system and method for generating unique, encrypted information at the point of manufacture, affixing it to an article, and later comparing that information with data from associated documents (like invoices or manifests) to authenticate the article and track it through the supply chain. A key element is the "manufacturing meter," a secure device that creates this encrypted data, often including details about the manufacturing process, location, and even the equipment operator.

The following patents were considered by the examiner and are relevant to these concepts.

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1. US5592561A: Anti-counterfeiting system

• Full Citation: Moore; Lewis J., US Patent 5,592,561, filed April 14, 1994, published January 7, 1997.
• Brief Description: This patent describes a system to prevent counterfeiting by generating a unique, random, encrypted "authenticator number" for each product or document. This number is stored in a central database along with product information (like serial number, date, and place of manufacture). The authenticator number is printed on the product as a bar code. Authentication occurs by scanning the bar code, transmitting the number to the central database, and verifying that the number is valid and has not been previously used.
• Potential Anticipation of Claims: This reference is highly relevant to the core concepts of US 5,768,384.
  • Claim 1: US '561 discloses a system for authenticating articles using encrypted information (authenticator number) that is uniquely associated with an article (serial number). It describes printing this information and affixing it to the article. It also describes a means for identifying authenticity by comparing the information on the article with a central record (central data registry). While it doesn't explicitly mention a "manufacturing meter" that includes operator information, the functions of generating a unique encrypted number at the point of manufacture and associating it with production data are present.
  • Claim 2: The central data registry in US '561 performs a similar function to the data center in claim 2, as it's a remote entity that manages the authenticating numbers.
  • Claims 5, 6, 9: The system in US '561 stores information such as the time/date and place of manufacture and the article's serial number in its central database, which is analogous to the encrypted information described in these claims.
  • Claim 15: The use of scanners to read the authenticator number from the product is explicitly taught.
  • Claim 19: The method of producing encrypted data on an article, storing associated information, and later comparing them for authentication is the central teaching of US '561.

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2. US5666421A: Mail processing system including data center verification for mailpieces

• Full Citation: Pitney Bowes Inc., US Patent 5,666,421, filed October 8, 1993, published September 9, 1997.
• Brief Description: This patent, assigned to the same entity as the subject patent, describes a secure postage metering system. A postage meter at a mailer's location generates a unique, encrypted number for each mailpiece. This number, along with mailing information (date, postage amount, origin ZIP code), is encoded into a 2-D barcode (indicia) printed on the mailpiece. A central data center stores this information. The postal service can then scan the barcode, decrypt it, and verify the mailpiece's authenticity and payment against the central data center's records.
• Potential Anticipation of Claims: This reference establishes the concept of a secure, remote "meter" communicating with a central "data center" for authentication purposes, which is a direct parallel to the system in US 5,768,384, albeit in the context of mail processing rather than general manufacturing.
  • Claim 1: The postage meter is analogous to the manufacturing meter. It produces encrypted information that is uniquely associated with each mailpiece. A printer prints this information, which is affixed to the mailpiece. The postal service's verification system serves as the means for identifying the authenticity. The key difference is the focus on mailpieces versus general "articles of manufacture" and the inclusion of "operator" information in claim 1.
  • Claim 2 & 4: The data center in US '421 is a direct parallel to the data center claimed here. It communicates with the remote meters to authorize postage and verify the integrity of the information generated.
  • Claim 3: The postage meter contains descending and ascending registers for tracking postage value, which is conceptually identical to the registers described in claim 3 for tracking the number of authorized articles.
  • Claim 5: The encrypted indicia includes a time stamp (date of mailing).

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3. US5384846A: System and apparatus for controlled production of a secure identification card

• Full Citation: Pitney Bowes Inc., US Patent 5,384,846, filed April 26, 1993, published January 24, 1995.
• Brief Description: This patent details a system for creating secure ID cards. An "authenticator" device, similar to a postage meter, controls the card printer. It receives personal data for the cardholder, generates a unique encrypted validation number based on that data, and causes the printer to print the data and the encrypted number onto the card. The system uses secure registers to track the number of cards produced versus the number authorized by a central data center.
• Potential Anticipation of Claims: This reference introduces the concept of a secure "authenticator" device controlling a printer to produce an authenticated item (an ID card) and including encrypted personal data.
  • Claim 1: The "authenticator" is a manufacturing meter. It produces encrypted information associated with the card and the operator (in this case, the cardholder). The printer affixes this information to the article (the ID card). This system strongly anticipates the hardware and process flow, with the primary distinction being the application to ID cards instead of general manufactured goods.
  • Claims 2, 3, 4: This patent explicitly teaches a remote data center that authorizes a specific number of cards to be printed. The authenticator device contains descending and ascending registers to track this usage, and the system is designed for forensic integrity, directly aligning with these dependent claims.

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4. US5426700A: Method and apparatus for verification of classes of documents

• Full Citation: Pitney Bowes Inc., US Patent 5,426,700, filed August 23, 1993, published June 20, 1995.
• Brief Description: This system authenticates documents by printing an encrypted number on them derived from the document's content (e.g., dollar amount on a check, tracking number on a shipping document). To verify the document, a scanner reads the content and the encrypted number. A verification device then re-encrypts the scanned content and compares the result to the encrypted number on the document. A match confirms the document's authenticity and that its contents have not been altered.
• Potential Anticipation of Claims: This patent is relevant for its teaching of comparing encrypted data on an item with information derived from the item itself or associated documents.
  • Claim 1 & 19: This reference discloses the core comparison step for authentication. It describes creating encrypted information (means for producing information that is used to identify the manufactured article) and later comparing the encrypted information printed on the article with the information produced. This aligns closely with the final element of claim 1 and the comparison step in method claim 19.

An analysis of the claims of US patent 5,768,384 in light of the cited prior art indicates that the patent's claims would likely be rendered obvious under 35 U.S.C. § 103. The core invention—applying a secure, network-connected metering device to general manufacturing for anti-counterfeiting and tracking—represents a combination of existing technologies that a person having ordinary skill in the art (PHOSITA) would have been motivated to assemble.

The primary argument for obviousness rests on combining the teachings of secure metering systems, such as those for postage (US 5,666,421A) or identification cards (US 5,384,846A), with the known problem of product counterfeiting (addressed in US 5,592,561A) and methods for document verification (US 5,426,700A).

Combination of References Rendering Claims Obvious

A combination of US 5,666,421A (hereafter '421) or US 5,384,846A (hereafter '846) as the primary reference, modified by the teachings of US 5,592,561A (hereafter '561) and US 5,426,700A (hereafter '700), would render the independent claims (1 and 19) and their dependent claims obvious.

1. The Base System: Secure Metering and Authentication

The Pitney Bowes patents, '421 and '846, disclose the fundamental architecture of the system claimed in US 5,768,384.

• US '421 teaches a secure postage meter that generates unique, encrypted information for each mailpiece. This meter is a direct analogue to the "manufacturing meter" in claim 1. It communicates with a remote data center for verification and to maintain forensic integrity (addressing claims 2 and 4). The meter contains ascending and descending registers to account for postage value, which is functionally identical to the registers for counting authorized articles in claim 3. The encrypted data includes a date, anticipating the time stamp of claim 5.
• US '846 teaches a similar system with a secure "authenticator" device that controls a printer to produce ID cards. It also uses a data center for authorization and tracks the number of cards produced with ascending/descending registers (claims 2, 3, 4). Critically, it generates an encrypted number based on personal data, establishing the principle of linking the encrypted data to a specific individual, a key step toward including operator information as claimed.

These patents establish the use of a secure, remote, network-controlled device for generating and affixing unique, encrypted identifiers onto items for authentication and accounting purposes. The primary difference is the application: mailpieces and ID cards, not general "articles of manufacture."

2. Motivation to Combine and Modify

A person of ordinary skill in the art in 1996, aware of the secure metering technology in '421 and '846, would have been motivated to apply it to solve the well-known and widespread problem of product counterfeiting and supply chain diversion.

• Applying the System to General Manufacturing: The '561 patent explicitly addresses the need for an anti-counterfeiting system for general products. It describes generating a unique, encrypted number for each product and storing it in a central database for later verification. A PHOSITA, tasked with building the system described in '561, would seek a secure and robust method for generating these encrypted numbers at the point of manufacture. The secure, tamper-resistant metering hardware from '421 and '846, already proven in high-security applications like postage and identification, would be an obvious and logical choice to implement the concept of '561. This combination provides a clear motivation to adapt the postage/ID meter for use as a "manufacturing meter."

• Including Operator Information: Claim 1 specifies that the encrypted data is associated with both the article and the "operator of the equipment." The '846 patent already teaches associating the encrypted data with a person (the cardholder). In adapting this system to a manufacturing context, including identifiers for the operator, the specific machine used (claim 7), or other production data would be an obvious extension for purposes of quality control, accountability, and enhanced tracking. This is not an inventive leap but rather a logical application of the system's capabilities to the new environment. Therefore, adding operator information (claims 1, 8, 16, 17, 18) would have been an obvious design choice.

• Implementing the Verification Step: Claim 1 concludes with a means for authentication "by comparing the encrypted information printed on the article with the information produced by said producing means" (e.g., an invoice or shipping manifest). Method claim 19 describes a similar comparison. The '700 patent directly teaches this verification concept. It describes authenticating a document by comparing an encrypted number on the document with a newly generated encrypted number derived from the document's content. A PHOSITA would have been motivated to incorporate this verification method into the system to create a closed-loop authentication process. It would be obvious to use the method from '700 to verify that the manufactured article (identified by the meter's code from '421/'846) correctly corresponds to an associated document, such as a shipping manifest (claim 11) or other form (claim 12), thereby confirming its authenticity and place in the supply chain.

Conclusion on Obviousness

The independent claims of US 5,768,384 are obvious over a combination of the prior art. The system described is essentially the secure metering and data center architecture from US '421 or US '846, applied to the general anti-counterfeiting purpose taught by US '561, and utilizing the verification-by-comparison method taught by US '700. A person of ordinary skill in the art would have found it obvious to combine these elements to arrive at the claimed invention, as it represents applying a known technological solution (secure metering) to a known problem (product counterfeiting) using a known verification technique. The dependent claims merely add further details (e.g., type of information to be encrypted, use of invisible ink) that are either taught by the references or would have been obvious design choices.

Term, Adjustments, and Related Applications for US Patent 5,768,384

Patent Term: The patent has expired and is no longer in force.

Projected Expiration Date: The original projected expiration date for US patent 5,768,384 would have been March 28, 2016, which is 20 years from its filing date of March 28, 1996.

Actual Expiration: The patent expired prematurely on June 16, 2010, due to the patent holder's failure to pay the required maintenance fees. The "Legal Events" section of the patent record explicitly states, "Lapsed due to failure to pay maintenance fee" with an effective date of 2010-06-16.

Under U.S. patent law, maintenance fees are due at 3.5, 7.5, and 11.5 years after the patent's issue date to keep it in force. Failure to pay these fees within the specified period, including a six-month grace period, results in the patent's expiration. The record indicates that the 12-year maintenance fee, due by December 16, 2009 (11.5 years after the June 16, 1998 grant date), was not paid. The grace period ended on June 16, 2010, at which point the patent lapsed.

Patent Term Adjustments (PTA) / Extensions (PTE):

• PTA: No Patent Term Adjustment was granted for this patent. The provisions for PTA were established by the American Inventors Protection Act of 1999 and generally apply to applications filed on or after May 29, 2000. Since this patent was filed in 1996, it was not eligible for this type of adjustment.
• PTE: There is no record of any Patent Term Extension under 35 U.S.C. § 156. Such extensions are typically granted to compensate for regulatory review delays (e.g., by the FDA) and are not applicable in this case.

Continuity and Family Data:

• Continuation or Divisional Applications: A review of the patent's file history indicates that US patent 5,768,384 is not a continuation or a divisional of any prior application. It is an original utility application.
• Related Family Members: The application for this patent, US 08/623,078, stands alone. There are no other US or international patents that claim priority to this application, meaning it does not have any direct patent family members.

Defensive Disclosure: Derivative Works of US Patent 5,768,384

Publication Date: April 28, 2026
Reference Patent: US 5,768,384 ("System for identifying authenticating and tracking manufactured articles")
Purpose: This document discloses a series of derivative inventions, technical variations, and new applications based on the core claims of US patent 5,768,384. The intent is to place these concepts into the public domain, thereby establishing prior art against future patent applications for similar, incremental improvements.

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Derivative Variations on Core System Claim (Claim 1)

The following disclosures describe variations on the system for identifying and authenticating articles, focusing on the "manufacturing meter" and its associated components.

1.1. Material & Component Substitution: Virtual Secure Meter with DNA Ink

• Enabling Description: The physical, tamper-resistant "manufacturing meter" hardware is replaced by a Virtual Secure Element (VSE) operating within a trusted execution environment (TEE), such as Intel SGX or ARM TrustZone, on a hardened industrial computer located on the manufacturing floor. The VSE software performs all cryptographic operations, including key management and encryption of manufacturing data (operator ID, timestamp, machine telemetry). The encrypted data is then encoded and used to synthesize a unique DNA sequence. This sequence is embedded in an ink or varnish using synthetic DNA taggants from a provider like DNATrax. The printer component is an aerosol jet or inkjet system that applies the DNA-laced ink to the article. Authentication is performed by taking a sample, sequencing the DNA using a portable MinION-type sequencer, and comparing the resulting data payload against a secure database record of the associated manifest.

• Mermaid.js Diagram:

  graph TD
      subgraph Industrial PC with TEE
          A[Manufacturing Data Input: Operator ID, Batch #] --> B{Virtual Secure Element};
          C[Machine Telemetry] --> B;
          B --> D[Encryption Engine];
      end
      D --> E{DNA Sequence Synthesis};
      E --> F[DNA-laced Ink Reservoir];
      F --> G[Aerosol Jet Printer];
      G --> H((Manufactured Article));
      subgraph Authentication
          I[Sample Collection from Article] --> J[Portable DNA Sequencer];
          J --> K{Decrypted Manufacturing Data};
          L[Shipping Manifest Data] --> M{Comparison Logic};
          K --> M;
          M --> N[Authentication Result: Valid/Invalid];
      end
  

1.2. Component Substitution: Physical Unclonable Function (PUF) Enrollment Meter

• Enabling Description: This variation eliminates the printed code entirely. For electronic components, the intrinsic, unique variations of a Physical Unclonable Function (PUF) circuit within the component's silicon (e.g., an SRAM PUF or Ring Oscillator PUF) are used as the unique identifier. The "manufacturing meter" is a specialized enrollment station. The article (e.g., a microcontroller) is placed in the station, which powers it and applies a set of challenges to the PUF circuit, recording the unique challenge-response pairs (CRPs). This CRP data, along with operator/manufacturing data, is encrypted and sent to a central data center. To authenticate, a field scanner applies a subset of the challenges to the device's PUF and verifies that the responses match the ones registered at enrollment. For mechanical parts, a laser speckle pattern on the surface can be used as a PUF, with the "meter" being an optical scanner that records the unique pattern.

• Mermaid.js Diagram:

  sequenceDiagram
      participant M as Manufacturing Meter (Enrollment)
      participant A as Article (with PUF)
      participant DC as Data Center
      participant S as Scanner (Authentication)
  
      M->>A: Apply Challenge Set C1...Cn
      A-->>M: Return Response Set R1...Rn
      M->>M: Combine {C,R} pairs + Operator Data
      M->>DC: Store Encrypted({C,R}, OpData)
      Note over A, S: Article enters supply chain
      S->>A: Apply Challenge C(i)
      A-->>S: Return Response R(i)
      S->>DC: Request R(i) for Challenge C(i)
      DC-->>S: Provide stored R(i)
      S->>S: Compare responses
      alt Responses Match
          S-->>User: Authenticated
      else Responses Differ
          S-->>User: Counterfeit
      end
  

1.3. Operational Parameter Expansion: Nanoscale Authentication Meter

• Enabling Description: The system is scaled down for authenticating individual semiconductor dies on a 300mm silicon wafer. The "manufacturing meter" is integrated into the automated test equipment (ATE) probe station. After a die passes electrical tests, the ATE encrypts the die's unique test results, its coordinates on the wafer (X, Y), the operator ID, and a timestamp. This encrypted payload is translated into a 2D datamatrix code measuring less than 10x10 micrometers. The "printer" is an electron-beam lithography or focused ion beam (FIB) system that etches this nano-barcode directly into a passivation layer of the die. Authentication is performed later in the supply chain using a scanning electron microscope (SEM) equipped with optical character recognition (OCR) software to read the nano-barcode and compare its contents against the foundry's secure production database.

• Mermaid.js Diagram:

  flowchart LR
      subgraph Wafer Fab
          A[Wafer Probe Station] --> B{Die Electrical Test};
          B -- Pass --> C[Encrypt Die-Specific Data];
          C --> D[Generate Nano-Datamatrix];
          D --> E[Focused Ion Beam Etcher];
          E --> F((Die on Wafer));
      end
      subgraph Downstream Verification
          G[Scanning Electron Microscope] --> H{Image Nano-Barcode};
          H --> I[Decode Datamatrix];
          J[Foundry Production Database] --> K{Compare Data};
          I --> K;
          K --> L{Authentication Status};
      end
  

1.4. Cross-Domain Application: Aerospace Component Lifecycle Meter

• Enabling Description: The system is applied to track and authenticate flight-critical aerospace components. The "manufacturing meter" is a hardened computing module embedded within a 5-axis CNC milling machine. As it mills a component (e.g., a turbine blade), it securely records machine parameters, material batch numbers (read from the raw stock), operator ID, and real-time vibration analysis data, creating a unique "birth certificate." This data is encrypted and then micro-etched by a laser integrated into the machine tool head onto a non-critical surface of the component. The authentication "scanner" is a handheld device used by maintenance crews, which reads the micro-etching and compares it with the component's digital record in the airline's maintenance, repair, and overhaul (MRO) database.

• Mermaid.js Diagram:

  graph TD
      subgraph Manufacturing
          A[Material Batch ID] --> B{CNC Meter Module};
          C[Operator Authentication] --> B;
          D[Live CNC Machine Telemetry] --> B;
          B --> E[Encrypt "Birth Certificate"];
          E --> F[Integrated Laser Etcher];
          F --> G((Turbine Blade));
      end
  
      subgraph MRO Operations
          H[Handheld Scanner] --> I{Read Etched Data};
          I --> J[Decrypt Data];
          J --> K{Compare with MRO Database};
          L[MRO Database] --> K;
          K --> M[Authenticate & Log Service];
      end
  

1.5. Cross-Domain Application: Agricultural "Field-to-Fork" Meter

• Enabling Description: The system tracks the provenance of organic agricultural products. The "manufacturing meter" is a ruggedized tablet or handheld device with GPS, a camera, and a secure enclave. In the field, a harvest worker logs in, and the device captures their ID, the current timestamp, and GPS coordinates of the specific field plot. The device also receives real-time data via LoRaWAN from in-ground IoT sensors measuring soil moisture and temperature. This data is encrypted and printed as a QR code on a biodegradable PLA (polylactic acid) label by a portable thermal printer. This label is affixed to the crate of produce. Authentication is performed by distributors or consumers scanning the QR code, which displays the provenance data and cross-references it against the farm's public harvest ledger.

• Mermaid.js Diagram:

  classDiagram
  class FieldMeter {
    +operatorID: string
    +timestamp: datetime
    +gpsCoordinates: string
    +soilMoisture: float
    +temperature: float
    +encryptProvenanceData()
  }
  class IoT_SoilSensor {
    +sensorID: string
    +moisture: float
    +temperature: float
    +transmitData()
  }
  class PortablePrinter {
    +printLabel(encryptedData)
  }
  class ProductCrate {
    +crateID: string
    +provenanceLabel: QR_Code
  }
  IoT_SoilSensor --|> FieldMeter : sends data to
  FieldMeter --|> PortablePrinter : commands
  PortablePrinter --|> ProductCrate : affixes label to
  

1.7. Integration with Emerging Tech: AI-Enhanced Process Fingerprinting

• Enabling Description: This system integrates AI to create a "process fingerprint" for authentication. The manufacturing meter is an IoT gateway connected to high-frequency sensors on the production machine (e.g., acoustic sensors, spectral analyzers, power consumption monitors). During production, the meter streams this raw sensor data to a cloud-based AI model (e.g., a convolutional neural network or an autoencoder). The AI computes a compressed representation vector (the "fingerprint") that uniquely characterizes that specific production run. This fingerprint, along with operator ID and serial number, is encrypted and affixed to the article as a 2D barcode. Authentication requires a scanner connected to the same AI service. The scanner reads the barcode, retrieves the fingerprint, and the AI service confirms if that fingerprint corresponds to a known, genuine production event stored in its database, preventing counterfeiting even if the code is copied, as the underlying process cannot be easily replicated.

• Mermaid.js Diagram:

  sequenceDiagram
      participant SM as Sensor-Rich Machine
      participant MM as IoT Meter
      participant AI as Cloud AI Model
      participant P as Printer
      participant S as Authenticator Scanner
  
      loop Production Run
          SM->>MM: Stream high-frequency sensor data
      end
      MM->>AI: Send raw sensor data bundle
      AI->>AI: Compute Process Fingerprint (Vector)
      AI-->>MM: Return Fingerprint + genuine_flag
      MM->>MM: Encrypt (SN, OperatorID, Fingerprint)
      MM->>P: Print encrypted barcode
      Note over S: Downstream Authentication
      S->>S: Scan barcode, decrypt payload
      S->>AI: Verify(SN, Fingerprint)
      AI-->>S: Authentication Status (Match/No Match)
  

1.8. Integration with Emerging Tech: Blockchain Oracle Meter

• Enabling Description: The manufacturing meter functions as a trusted hardware oracle for a supply chain blockchain (e.g., a permissioned Hyperledger Fabric or public Polygon chain). Upon an article's creation, the meter gathers manufacturing data, encrypts it, and generates a Keccak-256 hash of the encrypted payload. The meter then uses its unique cryptographic identity to call a smart contract on the blockchain, writing a new record that includes the article's serial number, the data hash, and its own digital signature. The physical article is marked with a QR code containing the transaction hash from the blockchain. Authentication is decentralized: anyone can scan the QR code, look up the transaction on a public block explorer, and verify that the hash in the transaction matches the hash they generate by scanning the article's full encrypted data. This provides immutable, auditable proof of origin.

• Mermaid.js Diagram:

  flowchart TD
      A[Manufacturing Event] --> B[Meter Gathers Data];
      B --> C{Encrypt Payload};
      C --> D{Generate Hash (H1)};
      D --> E[Sign Transaction with Meter's Key];
      E --> F[Call Smart Contract];
      F --> G((Blockchain Ledger));
      C --> H[Print QR Code of Full Payload];
      G --> I[Get Transaction ID (TxID)];
      I --> J[Print QR Code of TxID];
      subgraph Authentication
          K[Scanner reads TxID] --> L{Query Blockchain};
          L --> M[Retrieve Stored Hash (H1)];
          N[Scanner reads full payload] --> O{Generate Hash (H2)};
          O --> P{Compare H1 and H2};
          M --> P;
          P --> Q{Verification Result};
      end
  

1.9. Inverse / Failure Mode: Graceful Degradation Offline Meter

• Enabling Description: The manufacturing meter is designed for high-availability environments where network connectivity to the central data center may be intermittent. The meter is pre-loaded by the data center with a batch of single-use, numbered cryptographic keys. During normal operation, it communicates with the data center for each article. If connectivity is lost, it enters "offline mode." In this mode, it uses the next available single-use key from its secure storage to encrypt a minimal dataset (e.g., serial number, offline flag, and key number) and allows production to continue. The printed barcode is structured differently to indicate it was generated offline. When connectivity is restored, the meter syncs its offline transaction log with the data center. Downstream scanners that detect an offline-generated code can perform a "provisional" authentication and flag the item for full verification once the data has been synced.

• Mermaid.js Diagram:

  stateDiagram-v2
      [*] --> Online
      Online: Normal operation with Data Center
      Online --> Offline: Network Connection Lost
      Offline: Use pre-loaded single-use keys.
      Offline: Encrypt minimal data + 'offline_flag'.
      Offline --> Online: Network Connection Restored
      Online --> Online: Sync offline transaction log
  
      state Downstream_Scan {
          [*] --> Read_Code
          Read_Code --> Is_Offline_Flag_Present
          Is_Offline_Flag_Present -- Yes --> Provisional_Auth
          Is_Offline_Flag_Present -- No --> Full_Auth
          Provisional_Auth: Flag for later verification
          Full_Auth: Standard verification process
      }
  

---

Combination Prior Art Scenarios with Open-Source Standards

2.1. Combination with EPCIS 2.0 and GS1 Digital Link

• Enabling Description: The system of US patent 5,768,384 is integrated into a GS1 standards-compliant supply chain. The "manufacturing meter" generates its unique encrypted payload as described in the patent. This payload is then embedded within the query parameters of a GS1 Digital Link URI. The URI is encoded into a QR code and affixed to the article. The URI points to a cloud-based authentication service. When a user scans the QR code, their device makes an HTTP request to the URI. The authentication service first parses the encrypted payload and performs the patented comparison against shipping manifest data. If authentication succeeds, the service then logs a standards-compliant EPCIS 2.0 ObjectEvent (action: ADD) to a distributed EPCIS repository, using the article's SGTIN as the identifier. This creates an immutable, verifiable, and interoperable record of the article's commissioning, securely initiated by the patented authentication process.

2.2. Combination with FIDO2/WebAuthn for Operator Authentication

• Enabling Description: The authentication of the equipment operator, a key input to the "manufacturing meter," is enhanced using the FIDO2 open standard. The meter, or its associated terminal, acts as a FIDO2 Relying Party. Before starting a production run, the operator is prompted to authenticate not with a password or card, but with a FIDO authenticator (e.g., a YubiKey or a biometric sensor on their phone). The operator touches the key, which performs a cryptographic signature challenge-response with the meter. The public key credential of the operator is then included in the data encrypted by the meter and affixed to the article. This provides non-repudiable proof of the operator's presence and authorization for that specific article's production, replacing less secure methods like PINs or magnetic stripe cards.

2.3. Combination with W3C Verifiable Credentials Data Model

• Enabling Description: The entire authentication artifact is re-imagined as a W3C Verifiable Credential (VC). The "manufacturing meter" assumes the role of an "Issuer," associated with a Decentralized Identifier (DID). Upon production, the meter generates a VC in JSON-LD format. The credentialSubject of the VC is the manufactured article, identified by its serial number. The VC contains claims such as manufacturer, productionDate, operatorID, and machineID. The meter signs this VC with the private key associated with its DID, producing a compact, encoded Verifiable Presentation (often a JSON Web Token - JWT). This JWT is then encoded into a QR code and affixed to the article. A "Verifier" (e.g., a customs agent's app) can scan the code, decode the JWT, use the Issuer's DID to retrieve their public key from a distributed ledger or DID Document, and cryptographically verify the signature's authenticity, thus authenticating the product and its claimed attributes in a fully decentralized and standards-compliant manner.