Patent 8630699

Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

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Ownership chain (8)

Asserters network →

Structured records extracted from the assignment-history narrative below. Each entity links to its full ownership-network profile.

  1. 2015-09-10 · reel 033620/0273 · Security Interest

    ALLEN MEDICAL SYSTEMS, INC., ASPEN SURGICAL PRODUCTS, INC., HILL-ROM SERVICES, INC., WELCH ALLYN, INC.JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT

    Correspondent: · MCDERMOTT WILL & EMERY

    Securitization

  2. 2016-09-26 · recorded 2016-10-06 · reel 036070/0670 · Security Agreement

    ALLEN MEDICAL SYSTEMS, INC., ASPEN SURGICAL PRODUCTS, INC., HILL-ROM SERVICES, INC., WELCH ALLYN, INC.JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT

    Correspondent: · MCDERMOTT WILL & EMERY

    Securitization

  3. 2016-12-20 · recorded 2017-02-08 · reel 038590/0815 · Assignment

    LUMIRADX UK LTDFITLINXX, INC.

    Correspondent: JOHN R. WETZEL · WETZEL LAW FIRM

    Transfer

  4. 2017-08-10 · recorded 2017-09-13 · reel 041038/0102 · Assignment

    LUMINRADX UK LTDFITLINXX, INC.

    Correspondent: JOHN R. WETZEL · WETZEL LAW FIRM

    Corrective assignment to clarify previous transfer

  5. 2019-07-22 · recorded 2019-08-01 · reel 046755/0733 · Release of Security Interest

    FITLINXX, INC.LUMIRADX UK LTD

    Correspondent: · WETZEL LAW FIRM

    Release of security interest

  6. 2019-09-03 · recorded 2019-10-10 · reel 047514/0936 · Release of Security Interest

    JPMORGAN CHASE BANK, N.A.MORTARA INSTRUMENT, INC., HILL-ROM SERVICES, INC., ALLEN MEDICAL SYSTEMS, INC., ANODYNE MEDICAL DEVICE, INC., HILL-ROM COMPANY, INC., Voalte, Inc., HILL-ROM, INC., MORTARA INSTRUMENT SERVICES, INC., WELCH ALLYN, INC.

    Correspondent: · MCDERMOTT WILL & EMERY

    Release of security interest

  7. 2019-09-04 · recorded 2019-10-10 · reel 047514/0937 · Security Agreement

    ALLEN MEDICAL SYSTEMS, INC., ANODYNE MEDICAL DEVICE, INC., HILL-ROM HOLDINGS, INC., HILL-ROM SERVICES, INC., HILL-ROM, INC., Voalte, Inc., WELCH ALLYN, INC.JPMORGAN CHASE BANK, N.A.

    Correspondent: · MCDERMOTT WILL & EMERY

    Securitization

  8. 2021-12-14 · recorded 2021-12-29 · reel 050260/0644 · Release of Security Interest

    JPMORGAN CHASE BANK, N.A.Voalte, Inc., Bardy Diagnostics, Inc., HILL-ROM HOLDINGS, INC., ALLEN MEDICAL SYSTEMS, INC., WELCH ALLYN, INC., HILL-ROM SERVICES, INC., BREATHE TECHNOLOGIES, INC., HILL-ROM, INC.

    Correspondent: · MCDERMOTT WILL & EMERY

    Release of security interest

Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

✓ Generated

Inventors

  • Steven D. Baker: Welch Allyn Inc.
  • Eric T. McAdams: Welch Allyn Inc.
  • James P. Welch: Welch Allyn Inc.
  • Norbert Ohlenbusch: Welch Allyn Inc.
  • Thomas P. Blackadar: Welch Allyn Inc.

All inventors appear to have been employed by the original assignee, Welch Allyn Inc., at the time of filing. There are no immediate unusual patterns suggesting a mass departure.

Original assignee

Welch Allyn Inc. is the original assignee. They are a well-known manufacturer of medical diagnostic equipment and patient monitoring systems, indicating they likely shipped products embodying the claims. Welch Allyn Inc. was acquired by Hill-Rom Holdings, Inc. in 2015, which was subsequently acquired by Baxter International Inc. in 2021. So, the original assignee is operating under new ownership.

Assignment timeline

  • 2015-09-10 (executed) / recorded 2015-09-10 — Reel 033620/0273

    • Conveyance: Security Interest
    • Assignor: ALLEN MEDICAL SYSTEMS, INC., ASPEN SURGICAL PRODUCTS, INC., HILL-ROM SERVICES, INC., WELCH ALLYN, INC.
    • Assignee: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
    • Correspondent: MCDERMOTT WILL & EMERY LLP, 227 WEST MONROE STREET, SUITE 4400, CHICAGO, ILLINOIS, UNITED STATES, 60606
    • Context: Securitization (grant of security interest)

  • 2016-09-26 (executed) / recorded 2016-10-06 — Reel 036070/0670

    • Conveyance: Security Agreement
    • Assignor: ALLEN MEDICAL SYSTEMS, INC., ASPEN SURGICAL PRODUCTS, INC., HILL-ROM SERVICES, INC., WELCH ALLYN, INC.
    • Assignee: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
    • Correspondent: MCDERMOTT WILL & EMERY LLP, 227 WEST MONROE STREET, SUITE 4400, CHICAGO, ILLINOIS, UNITED STATES, 60606. This correspondent previously appeared on reel 033620/0273.
    • Context: Securitization (grant of security interest)

  • 2016-12-20 (executed) / recorded 2017-02-08 — Reel 038590/0815

    • Conveyance: Assignment
    • Assignor: LUMIRADX UK LTD
    • Assignee: FITLINXX, INC.
    • Correspondent: JOHN R. WETZEL, WETZEL LAW FIRM, LLC, 1373 BROADWAY, SUITE 1030, NEW YORK, NEW YORK, UNITED STATES, 10018
    • Context: Transfer

  • 2017-08-10 (executed) / recorded 2017-09-13 — Reel 041038/0102 (Corrective Assignment for a previous record)

    • Conveyance: Assignment
    • Assignor: LUMINRADX UK LTD
    • Assignee: FITLINXX, INC.
    • Correspondent: JOHN R. WETZEL, WETZEL LAW FIRM, LLC, 1373 BROADWAY, SUITE 1030, NEW YORK, NEW YORK, UNITED STATES, 10018. This correspondent previously appeared on reel 038590/0815.
    • Context: Corrective assignment to clarify previous transfer

  • 2019-07-22 (executed) / recorded 2019-08-01 — Reel 046755/0733

    • Conveyance: Release of Security Interest
    • Assignor: FITLINXX, INC.
    • Assignee: LUMIRADX UK LTD
    • Correspondent: WETZEL LAW FIRM, LLC, 1373 BROADWAY, SUITE 1030, NEW YORK, NEW YORK, UNITED STATES, 10018. This correspondent previously appeared on reels 038590/0815 and 041038/0102.
    • Context: Release of security interest

  • 2019-09-03 (executed) / recorded 2019-10-10 — Reel 047514/0936

    • Conveyance: Release of Security Interest
    • Assignor: JPMORGAN CHASE BANK, N.A.
    • Assignee: MORTARA INSTRUMENT, INC., HILL-ROM SERVICES, INC., ALLEN MEDICAL SYSTEMS, INC., ANODYNE MEDICAL DEVICE, INC., HILL-ROM COMPANY, INC., Voalte, Inc., HILL-ROM, INC., MORTARA INSTRUMENT SERVICES, INC., WELCH ALLYN, INC.
    • Correspondent: MCDERMOTT WILL & EMERY LLP, 227 WEST MONROE STREET, SUITE 4400, CHICAGO, ILLINOIS, UNITED STATES, 60606. This correspondent previously appeared on reels 033620/0273 and 036070/0670.
    • Context: Release of security interest

  • 2019-09-04 (executed) / recorded 2019-10-10 — Reel 047514/0937

    • Conveyance: Security Agreement
    • Assignor: ALLEN MEDICAL SYSTEMS, INC., ANODYNE MEDICAL DEVICE, INC., HILL-ROM HOLDINGS, INC., HILL-ROM SERVICES, INC., HILL-ROM, INC., Voalte, Inc., WELCH ALLYN, INC.
    • Assignee: JPMORGAN CHASE BANK, N.A.
    • Correspondent: MCDERMOTT WILL & EMERY LLP, 227 WEST MONROE STREET, SUITE 4400, CHICAGO, ILLINOIS, UNITED STATES, 60606. This correspondent previously appeared on reels 033620/0273, 036070/0670, and 047514/0936.
    • Context: Securitization (grant of security interest)

  • 2021-12-14 (executed) / recorded 2021-12-29 — Reel 050260/0644

    • Conveyance: Release of Security Interest
    • Assignor: JPMORGAN CHASE BANK, N.A.
    • Assignee: Voalte, Inc., Bardy Diagnostics, Inc., HILL-ROM HOLDINGS, INC., ALLEN MEDICAL SYSTEMS, INC., WELCH ALLYN, INC., HILL-ROM SERVICES, INC., BREATHE TECHNOLOGIES, INC., HILL-ROM, INC.
    • Correspondent: MCDERMOTT WILL & EMERY LLP, 227 WEST MONROE STREET, SUITE 4400, CHICAGO, ILLINOIS, UNITED STATES, 60606. This correspondent previously appeared on reels 033620/0273, 036070/0670, 047514/0936, and 047514/0937.
    • Context: Release of security interest

Timeline diagram

timeline
    title Ownership of US 8630699
    2012 : Filed by Welch Allyn Inc
    2014 : Issued to Welch Allyn Inc
    2015 : Security interest to JPMorgan
    2016 : Security agreement to JPMorgan
         : Assigned to Fitlinxx Inc
    2017 : Corrective assignment to Fitlinxx
    2019 : Security interest released by Fitlinxx
         : Security interest released by JPMorgan
         : Security agreement to JPMorgan
    2021 : Security interest released by JPMorgan

NPE / troll-pattern signals

  1. Shell-entity transfer — unclear. While Fitlinxx, Inc. (assignee on reels 038590/0815 and 041038/0102, and assignor on reel 046755/0733) is not a medical device manufacturer in the same vein as Welch Allyn/Hill-Rom, it's not immediately clear from the assignment records alone if it operates as a pure licensing shell or has other product lines. Lumiradx UK Ltd (assignor on reels 038590/0815 and 041038/0102, and assignee on reel 046755/0733) also appears in the chain; while Lumiradx is a diagnostics company, their role in this specific patent's transfer as both assignor and assignee for Fitlinxx is somewhat convoluted without further context.
  2. Known asserter in the chain — not present. None of the assignees (JPMorgan Chase Bank, N.A., Fitlinxx, Inc., Lumiradx UK Ltd, or the various Hill-Rom entities) are recognized on public NPE lists such as those from RPX or Unified Patents, or the other listed asserters.
  3. Repeat correspondent across the chain — present. MCDERMOTT WILL & EMERY LLP has consistently acted as the correspondent for all security interest filings involving JPMORGAN CHASE BANK, N.A. (reels 033620/0273, 036070/0670, 047514/0936, and 047514/0937, 050260/0644). Similarly, JOHN R. WETZEL of WETZEL LAW FIRM, LLC appears as the correspondent for the assignments to and from FITLINXX, INC. (reels 038590/0815, 041038/0102, and 046755/0733). This indicates consistent legal representation for specific parties involved in the chain.
  4. Cascading transfers — not present. The transfers, particularly those involving Fitlinxx and Lumiradx, are not rapid consecutive assignments within a short timeframe between related LLCs. The security interest grants are distinct from transfers of ownership.
  5. Pre-litigation transfer — unclear. Without information on the first infringement suit filing date for this specific patent, it is not possible to determine if any assignment occurred within 6 months prior.
  6. Bankruptcy fire-sale — not present. There is no indication in the assignment records or publicly available information that Welch Allyn Inc. or any subsequent operating company assignor filed for bankruptcy and sold off its patent assets.
  7. Privateering — not present. There is no evidence from the assignment records to suggest an operating company transferred the patent to an NPE to assert on its behalf.
  8. Defensive aggregator (anti-NPE) — not present. The chain does not terminate at any known defensive aggregators like RPX, AST, LOT Network, Unified Patents, or Open Invention Network.

Verdict

Insufficient data. While there are repeat correspondents for different segments of the assignment chain (McDermott Will & Emery for the JPMorgan security interests, and Wetzel Law Firm for the Fitlinxx/Lumiradx transfers), this primarily reflects consistent legal representation for ongoing business activities (securitization and corporate restructuring) rather than clear NPE-driven assertion patterns. The nature of Fitlinxx, Inc. and Lumiradx UK Ltd's operations as they relate to this specific patent's use is unclear from the assignment records alone, preventing a confident determination of shell-entity transfer. Furthermore, there are no known asserters in the chain, nor evidence of pre-litigation transfers or bankruptcy fire-sales.

USPTO Assignment Center search for US8630699: https://assignmentcenter.uspto.gov/patent/index.html?cn=US8630699B2

Generated 5/16/2026, 12:47:02 PM