US 10327511

Here is a concise summary of US patent 10327511:

US Patent 10327511: Shoe having knit wingtip upper

• Title: Shoe having knit wingtip upper
• Assignee: Cole Haan LLC
• Inventors: Jack Boys, Ann Bono, Aubert Shepherd, Mattias Verfl
• Filing Date: 2016-07-08
• Issue Date: 2019-06-25
• Abstract: A shoe includes a knit upper and a sole secured to the upper. The knit upper has a wingtip pattern knit into the knit upper.

Plain-Language Overview of Independent Claims:

• Claim 1 (Shoe with Knit Wingtip Pattern): This claim describes a shoe featuring a knit upper and a sole attached to it. The knit upper is constructed as a single, continuous piece formed during the knitting process. This knitted piece includes seamlessly integrated regions for the heel, lateral and medial midfoot, metatarsal, lateral and medial ball, and toe areas. A key characteristic is the presence of a wingtip pattern, which is also knitted into these regions. This wingtip pattern specifically includes distinct medial and lateral lines of broguing (lines of holes). These broguing lines are wing-shaped and curved, with side portions extending forward towards the toe and central portions extending rearward from the toe, converging towards each other.
• Claim 17 (Shoe with Knit Broguing and Different Knit Structures): This claim also describes a shoe with a knit upper and a sole, where the upper is a unitary one-piece knitted element with seamlessly integrated heel, midfoot, metatarsal, ball, and toe regions. The patent specifically highlights a line of broguing (a line of holes) knitted into the upper toe region. Additionally, the knitted element features at least two different types of knit structures: a first area of a first type of knit structure and a second area of a second, different type of knit structure. The first area is located at least in the upper toe region, and the second area is located at least in the upper lateral and medial metatarsal regions. The line of broguing is positioned adjacent to the rear boundary of the first area and the forward boundary of the second area.
• Claim 20 (Method of Manufacturing an Upper with Broguing and Different Knit Structures): This claim outlines a manufacturing method for a footwear upper. The method involves knitting a single, continuous piece for the upper, including the heel, midfoot, metatarsal, ball, and toe regions, which are all seamlessly knitted together. During this knitting step, a line of broguing (holes) is incorporated into the upper, particularly in the toe region. Furthermore, the knitting process creates a first area with a first type of knit structure and a second area with a second, different type of knit structure, located at least in the toe region and the lateral and medial metatarsal regions, respectively. The line of broguing is formed adjacent to the boundaries of these two knit areas.
• Claim 21 (Method of Manufacturing a Shoe with Specific Knit Structures and Sole Attachment): This claim describes a method for manufacturing an entire shoe. It involves knitting a unitary one-piece upper that includes seamlessly knitted heel, midfoot, metatarsal, ball, and toe regions. Specifically, the knitted element is formed with a first area using a jersey stitch knit (at least in the upper toe region) and a second area using a pointelle stitch knit (at least in the upper lateral and medial metatarsal regions). After the knitting step, the method includes attaching the sole to the upper. The seamless knitting of the various regions and the knitting of the distinct jersey and pointelle stitch areas all occur during the initial knitting process.

CAFC 2026 Dockets:
A search of the CAFC 2026 dockets did not explicitly return any cases directly naming patent 10327511 in the provided results. However, the legal status information for US10327511B2 indicates ongoing litigation, specifically mentioning a PTAB case (IPR2025-01392), a US case filed in the New Jersey District Court (2:25-cv-00176), and a US case filed in the Illinois Northern District Court (1:25-cv-01327).

Here is a list of known litigation involving US Patent 10,327,511:

1. PTAB Case

• Case Number: IPR2025-01392
• Jurisdiction: Patent Trial and Appeal Board (PTAB)
• Plaintiff(s)/Petitioner(s): Unified Patents LLC
• Defendant(s)/Patent Owner(s): Cole Haan LLC (original assignee of US10327511B2)
• Filing Date: Not explicitly stated in the provided text, but the case number IPR2025-01392 suggests it was filed in 2025.
• Outcome/Current Status: Not Instituted - Procedural

2. US District Court Case (New Jersey)

• Case Number: 2:25-cv-00176
• Jurisdiction: New Jersey District Court
• Plaintiff(s): Not explicitly stated in the provided text.
• Defendant(s): Not explicitly stated in the provided text.
• Filing Date: Not explicitly stated in the provided text, but the case number 2:25-cv-00176 suggests it was filed in 2025.
• Outcome/Current Status: Litigation (as of the patent's last update)

3. US District Court Case (Illinois Northern)

• Case Number: 1:25-cv-01327
• Jurisdiction: Illinois Northern District Court
• Plaintiff(s): Not explicitly stated in the provided text.
• Defendant(s): Not explicitly stated in the provided text.
• Filing Date: Not explicitly stated in the provided text, but the case number 1:25-cv-01327 suggests it was filed in 2025.
• Outcome/Current Status: Litigation (as of the patent's last update)

Please note that the plaintiff(s), defendant(s), and specific filing dates for the district court cases are not fully detailed in the provided patent information, beyond the general mention of "US case filed". For more precise and up-to-date details on these ongoing district court cases, a direct search of the PACER system (Public Access to Court Electronic Records) or Unified Patents' specific litigation case list with the provided case numbers would be necessary. While PACER provides access to federal court records, it charges a fee per page for access to case information.

Proceedings overview

A single AIA trial proceeding, IPR2025-01392, has been filed against US patent 10327511. This proceeding resulted in a discretionary denial of institution, meaning the claims were not reviewed on their merits by the Patent Trial and Appeal Board (PTAB). This outcome indicates that the patent has survived an IPR challenge, and its claims remain intact, lending a degree of hardening to the patent's defensive posture.

IPR2025-01392 — TOP GLORY TRADING GROUP INC. et al. v. Cole Haan LLC

• Type: Inter Partes Review
• Filed: 2025-09-03
• Status: Discretionary Denial. This means the USPTO Director exercised discretion to deny institution of the IPR, so the merits of the patentability challenge were not examined by the PTAB.
• Judge panel: Following a policy change effective October 20, 2025, institution decisions, especially discretionary denials, were made personally by the USPTO Director, John Squires, after consultation with at least three PTAB Administrative Patent Judges (APJs). Given the filing date in September 2025, this decision likely fell under this new centralized review process.
• Petition grounds: Specific details regarding the challenged claims, prior art cited, and statutory bases (§ 102 / § 103) are not publicly available. This aligns with the USPTO's policy during this period to issue routine discretionary denial decisions as summary notices without detailed written explanations.
• Institution decision: The petition was denied institution, with the status last modified on 2026-02-10. The denial was discretionary, meaning the Director chose not to proceed with the trial based on policy factors rather than the merits of the invalidity arguments. Common reasons for discretionary denials at this time included considerations of parallel litigation (Fintiv factors), "settled expectations" (patent age and patent owner's activities), or efficiency. However, the specific reasoning for this particular case is not public.
• Final Written Decision (if issued): No Final Written Decision was issued because the IPR was not instituted.
• Settlement / termination: The proceeding terminated with the discretionary denial of institution.
• Appeal: Discretionary denials of institution are generally not appealable to the Federal Circuit.
• Defensive value: The claims of US10327511 were not adjudicated on their merits for patentability. Therefore, all claims remain valid and enforceable from this proceeding's perspective. For a defendant, this means that the specific arguments raised in this IPR petition were not successful in getting a trial started, making a future IPR based on substantially the same grounds by the same petitioner or a privy more challenging to institute.

Strategic summary

Currently, all claims of US10327511 are considered SUSTAINED / UNTESTED in the context of AIA trial proceedings, as the single IPR filed (IPR2025-01392) was denied institution without reaching a merits-based decision. This means the patent has not been narrowed or weakened by PTAB findings of unpatentability.

The estoppel landscape is relatively clear. Since no claims were found unpatentable, statutory estoppel under 35 U.S.C. § 315(e)(2) (which applies to grounds raised or that reasonably could have been raised) does not directly prevent a future petitioner from challenging the patent. However, the discretionary denial itself may carry preclusive effects or at least strong precedential weight for the same petitioner or their privies if they were to file a new petition challenging the same claims on the same grounds. The PTAB often considers the history of prior challenges in discretionary institution decisions, especially concerning issues like serial petitions or "settled expectations".

The single IPR against this patent, resulting in a discretionary denial, aligns with the trend observed in late 2025 where the USPTO Director exercised greater control over institution decisions, often issuing summary denials without detailed reasoning. This pattern signals a more challenging environment for petitioners seeking to institute IPRs, particularly when patents have been in force for some time or if there are parallel district court litigations. The involvement of Unified Patents in some other IPRs (though not explicitly stated for this one) indicates a defensive aggregator may be active in the broader patent landscape, but not directly on this patent for this IPR.

Recommended next steps

Given that IPR2025-01392 resulted in a discretionary denial of institution and no claims of US10327511 were invalidated:

• There is no Final Written Decision to link or quote from, as the IPR was not instituted on the merits.
• No active PTAB proceedings are currently pending for this patent.
• For a defendant facing assertion of this patent, the claims have not been formally challenged and found unpatentable by the PTAB. Therefore, any defensive strategy would need to consider alternative invalidity arguments, potentially through district court litigation, or explore new and distinct prior art grounds for a future IPR petition. It would be crucial to analyze the specific reasons typically cited for discretionary denials during late 2025, such as parallel litigation or "settled expectations," to assess the viability of any new IPR filing by the same entity or its privies.

Inventors

The named inventors for US patent 10327511 are Jack Boys, Ann Bono, Aubert Shepherd, and Mattias Verfl. At the time of filing on 2016-07-08, they were presumably employed by Cole Haan LLC, the original assignee. There is no information in the provided text to suggest that any inventors departed the original assignee within 12 months of filing.

Original assignee

The original assignee on record is Cole Haan LLC. They are a well-known operating company primarily engaged in the design, manufacturing, and retail of footwear and accessories. Cole Haan LLC ships products embodying the claims of US10327511. Cole Haan LLC is currently an active operating company.

Assignment timeline

• 2016-08-18 to 2016-08-23 (executed) / recorded 2016-08-24 — Reel 039528/0510

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: Jack Boys, Ann Bono, Aubert Shepherd, Mattias Verfl
  • Assignee: Cole Haan LLC, New York
  • Correspondent: Not specified in provided record.
  • Context: Original assignment of patent rights from the inventors to the company.

• 2019-02-12 (executed) / recorded 2019-02-15 — Reel 048355/0667

  • Conveyance: SECURITY INTEREST
  • Assignor: Cole Haan LLC
  • Assignee: JPMorgan Chase Bank, N.A., Illinois
  • Correspondent: Not specified in provided record.
  • Context: Patent pledged as collateral for a loan (securitization).

• 2020-06-30 (executed) / recorded 2020-07-01 — Reel 053100/0028

  • Conveyance: PATENT SECURITY AGREEMENT
  • Assignor: Cole Haan LLC
  • Assignee: Alter Domus (US) LLC, As Collateral Agent, Illinois
  • Correspondent: Not specified in provided record.
  • Context: Patent pledged as collateral, with Alter Domus acting as a collateral agent (securitization).

• 2020-09-14 (executed) / recorded 2020-09-14 — Reel 053770/0204

  • Conveyance: SECURITY AGREEMENT
  • Assignor: Cole Haan LLC
  • Assignee: Bank of America, N.A., Massachusetts
  • Correspondent: Not specified in provided record.
  • Context: Patent pledged as collateral for a loan (securitization).

• 2023-08-15 (executed) / recorded 2023-08-15 — Reel 064599/0780

  • Conveyance: RELEASE BY SECURED PARTY
  • Assignor: Alter Domus (US) LLC, As Collateral Agent
  • Assignee: Cole Haan LLC, New Hampshire
  • Correspondent: Not specified in provided record.
  • Context: Release of security interest from Alter Domus back to Cole Haan.

• 2023-08-15 (executed) / recorded 2023-08-15 — Reel 064599/0077

  • Conveyance: SECURITY INTEREST
  • Assignor: Cole Haan LLC
  • Assignee: Acquiom Agency Services LLC, As Collateral Agent, Colorado
  • Correspondent: Not specified in provided record.
  • Context: New security interest granted by Cole Haan to Acquiom Agency Services (securitization).

• 2023-08-16 (executed) / recorded 2023-08-16 — Reel 048355/0667 (referencing the original security interest recorded on 2019-02-15)

  • Conveyance: RELEASE OF SECURITY INTEREST RECORDED FEBRUARY 15, 2019
  • Assignor: JPMorgan Chase Bank, N.A.
  • Assignee: Cole Haan LLC, New Hampshire
  • Correspondent: Not specified in provided record.
  • Context: Release of security interest from JPMorgan Chase back to Cole Haan.

Timeline diagram

timeline
    title Ownership of US 10327511
    2016 : Inventors assigned to Cole Haan
    2019 : Security interest to JPMorgan
    2019 : Patent granted
    2020 : Sec interest to Alter Domus
         : Sec interest to Bank of America
    2023 : Release by Alter Domus to Cole Haan
         : Sec interest to Acquiom
         : Release by JPMorgan to Cole Haan

NPE / troll-pattern signals

1. Shell-entity transfer — not present. All recorded assignees are either the operating company Cole Haan LLC, or recognized financial institutions/collateral agents (JPMorgan Chase Bank, N.A., Alter Domus (US) LLC, Bank of America, N.A., Acquiom Agency Services LLC). There is no evidence of a transfer to a licensing-only shell entity.

2. Known asserter in the chain — not present. None of the financial institutions or collateral agents in the assignment chain are known patent assertion entities (NPEs).

3. Repeat correspondent across the chain — unclear. The correspondent information (attorney name, firm, address) is not specified in the provided "Legal Events" section for any of the recorded assignments. Therefore, this signal cannot be evaluated.

4. Cascading transfers — not present. The transfers primarily involve security interests and their subsequent releases, which represent financial transactions rather than successive changes in primary ownership between different entities.

5. Pre-litigation transfer — not present. The most recent recorded assignments (2023) involve security interests and releases. The litigation events mentioned (PTAB case IPR2025-01392, US cases in New Jersey and Illinois District Courts in 2025) occurred after these recorded assignments. The assignments do not appear to be strategically timed to precede an initial assertion campaign.

6. Bankruptcy fire-sale — not present. Cole Haan LLC remains an active operating company, and the assignments do not indicate any bankruptcy proceedings.

7. Privateering — not present. There is no information to suggest Cole Haan LLC has transferred the patent to an NPE to assert on its behalf.

8. Defensive aggregator (anti-NPE) — not present. The patent has not been assigned to a defensive aggregator such as RPX or Allied Security Trust.

Verdict

Operating-company assertion. The patent is currently owned by Cole Haan LLC, an active operating company that manufactures and sells footwear products. The recorded assignments are primarily security interests granted to financial institutions and subsequent releases, which are typical financing activities for operating businesses. The patent has been involved in litigation (e.g., IPR2025-01392, US district court cases in 2025), which, given the operating company status of Cole Haan, indicates an assertion or defense by an operating company against competitors, rather than an NPE.

USPTO Assignment Center search page for US10327511: https://assignmentcenter.uspto.gov/patents/10327511

Here's an analysis of the most relevant prior art for US patent 10327511, based on the provided patent text and focusing on potential anticipation under 35 U.S.C. § 102.

US Patent 10327511: Shoe having knit wingtip upper

• Publication Date: 2019-06-25
• Filing Date: 2016-07-08
• Assignee: Cole Haan LLC
• Abstract: A shoe includes a knit upper and a sole secured to the upper. The knit upper has a wingtip pattern knit into the knit upper.

Prior Art Analysis

1. US2312078A

• Full Citation: US2312078A - Shoe upper
• Publication Date: 1943-02-23 (Priority Date: 1940-10-09)
• Brief Description: This patent describes a shoe upper, specifically focusing on a method for making a shoe upper with an ornamental pattern. It involves a textile material with perforations (broguing) and the use of reinforcing layers.
• Potential Anticipated Claim(s):
  • Claims 1, 17, 20, 21 (in part): This patent potentially anticipates the general concept of a shoe upper with broguing or a patterned design, as well as the ornamental appearance. However, it does not describe a knit upper of unitary one-piece construction with seamlessly knitted regions or different knit structures explicitly, nor the specific method of knitting the broguing as holes directly during the knitting process. Its relevance is primarily for the ornamental aspect of a wingtip-style shoe with perforations.

2. USD293386S

• Full Citation: USD293386S - Shoe upper
• Publication Date: 1987-12-29 (Priority Date: 1986-04-04)
• Brief Description: This is a design patent for a shoe upper, showing an ornamental design for a shoe upper. It visually depicts a wingtip-like pattern with perforations.
• Potential Anticipated Claim(s):
  • Claims 1, 17: As a design patent, it primarily anticipates the ornamental appearance of a shoe upper having a wingtip pattern with broguing. It does not disclose structural or manufacturing details like a knit, unitary, one-piece construction, seamless knitting of regions, or different knit structures, which are central to US10327511's utility claims.

3. USD394739S

• Full Citation: USD394739S - Shoe upper
• Publication Date: 1998-06-02 (Priority Date: 1997-04-15)
• Brief Description: This is a design patent for a shoe upper, presenting an ornamental design for a shoe upper with a wingtip-like structure and potential perforations.
• Potential Anticipated Claim(s):
  • Claims 1, 17: Similar to USD293386S, this design patent is relevant for the ornamental design of a shoe upper incorporating a wingtip pattern and broguing. It lacks disclosure of the functional and structural features of the knit upper in US10327511.

4. USD401398S

• Full Citation: USD401398S - Shoe upper
• Publication Date: 1998-11-24 (Priority Date: 1997-10-28)
• Brief Description: This is a design patent for a shoe upper, showing another ornamental design for a shoe upper that includes design elements resembling a wingtip pattern.
• Potential Anticipated Claim(s):
  • Claims 1, 17: Again, as a design patent, it anticipates the visual aesthetic of a shoe upper with a wingtip-like pattern. It does not provide the technical details regarding the knit construction, seamless regions, or different knit structures as claimed in US10327511.

5. US6910288B2

• Full Citation: US6910288B2 - Footwear incorporating a textile with fusible filaments and fibers
• Publication Date: 2005-06-28 (Priority Date: 2002-12-18)
• Brief Description: This patent describes footwear uppers made from textile materials that include fusible filaments or fibers (hot melt yarn) to enhance shape retention, support, and durability.
• Potential Anticipated Claim(s):
  • Claims 7, 8, 9, 10, 11, 12, 13, 14, 22, 23: This patent is highly relevant as it teaches the use of hot melt yarn in footwear textiles for structural integrity and shaping. It specifically anticipates claims related to the composition of the knitted element including hot melt yarn and other yarns (e.g., covered spandex, polyester), their proportions, linear densities, and the method of applying heat to affix the hot melt yarn for shaping (e.g., step 106 and 108 in US10327511's method claims). While it may not disclose a unitary one-piece knit upper with a wingtip pattern or broguing, it anticipates the material composition and heat-setting process.

6. US7347011B2

• Full Citation: US7347011B2 - Article of footwear having a textile upper
• Publication Date: 2008-03-25 (Priority Date: 2004-03-03)
• Brief Description: This patent describes an article of footwear with a textile upper, where the textile element can be formed through knitting, weaving, or braiding. It mentions that different areas of the upper can have different material characteristics (e.g., stretch, strength, breathability).
• Potential Anticipated Claim(s):
  • Claims 4, 5, 6, 15, 16, 17, 18, 19, 20, 21 (in part): This patent potentially anticipates the concept of a knit upper having different types of knit structures in different areas to achieve varying properties. While it doesn't specify a "wingtip pattern" or "broguing" or "unitary one-piece seamless construction" in the same detail as US10327511, it lays groundwork for a knit upper with differentiated structural areas. For example, the use of a first area of a first knit type and a second area of a second knit type (e.g., jersey and pointelle) could be considered anticipated in principle.

7. US20120255201A1

• Full Citation: US20120255201A1 - Seamless upper for footwear and method for making the same
• Publication Date: 2012-10-11 (Filing Date: 2011-04-08)
• Brief Description: This application discloses a seamless upper for footwear, manufactured using a knitting machine. It describes knitting various regions (e.g., toe, vamp, heel) together to form a seamless upper, including different knit patterns for aesthetic and functional purposes.
• Potential Anticipated Claim(s):
  • Claims 1, 17, 20, 21 (in part): This document is highly relevant as it describes a seamless and knit upper constructed in a unitary one-piece manner on a knitting machine, with various regions (heel, midfoot, metatarsal, ball, toe) seamlessly knitted together. This directly anticipates a significant portion of the structural claims in US10327511. However, it does not explicitly describe a "wingtip pattern" or "broguing as a line of holes" or the specific arrangement of different knit structures defining those patterns as found in US10327511.

8. KR101367445B1

• Full Citation: KR101367445B1 - Upper of shoes
• Publication Date: 2014-02-25 (Priority Date: 2013-07-10)
• Brief Description: This patent describes a shoe upper, likely focusing on construction or material. Specific details are limited without the full text in English, but the title suggests a general shoe upper.
• Potential Anticipated Claim(s):
  • Without further details on the content of KR101367445B1, it's difficult to determine specific anticipation beyond the general concept of a "shoe upper." It would need to be reviewed for disclosures related to one-piece knit construction, seamless regions, wingtip patterns, broguing, or different knit structures.

9. US20140310985A1

• Full Citation: US20140310985A1 - Shoe adapted to the shape of the foot
• Publication Date: 2014-10-23 (Filing Date: 2013-04-19)
• Brief Description: This application describes a shoe with an upper that is adapted to the shape of the foot, potentially through the use of knitted materials that conform or stretch. It focuses on knitted uppers and their properties.
• Potential Anticipated Claim(s):
  • Claims 1, 17, 20, 21 (in part): This reference contributes to the anticipation of a knit upper and its ability to conform to the foot. Similar to US20120255201A1, it strengthens the general concept of knit footwear uppers but may not specifically disclose the intricate wingtip patterns, broguing, or precise differentiation of knit structures as claimed in US10327511.

10. US20150342285A1

• Full Citation: US20150342285A1 - Method Of Making An Article Of Footwear Including Knitting A Knitted Component Of Warp Knit Construction Forming A Seamless Bootie With Tucked-In Portion
• Publication Date: 2015-12-03 (Filing Date: 2014-05-30)
• Brief Description: This application describes a method of making footwear by knitting a seamless bootie (upper component) using warp knit construction.
• Potential Anticipated Claim(s):
  • Claims 1, 17, 20, 21 (in part): This reference is very relevant to the method claims (20, 21) and apparatus claims (1, 17) regarding the unitary one-piece seamless knitted construction of a shoe upper. The emphasis on "seamless bootie" directly relates to the seamless knitting of various regions. Similar to US20120255201A1, its main contribution to anticipation would be the core knitting process for a seamless upper, rather than the specific ornamental patterns or knit structure differentiations for broguing.

Most Relevant Prior Art Summary:

Based on the analysis, the most relevant prior art documents for US10327511 appear to be:

• US20120255201A1 (Seamless upper for footwear and method for making the same) and US20150342285A1 (Method Of Making An Article Of Footwear Including Knitting A Knitted Component Of Warp Knit Construction Forming A Seamless Bootie With Tucked-In Portion): These two documents are highly relevant for anticipating the core concept of a unitary one-piece knit upper with seamlessly knitted regions using a knitting machine. They establish the prior art for the fundamental construction method of knit uppers for footwear.

• US6910288B2 (Footwear incorporating a textile with fusible filaments and fibers): This patent is critical for anticipating the material composition, specifically the use of hot melt yarn in a knit textile for a shoe upper, and the heat-setting process to achieve shape retention. This directly addresses claims 7-14 and 22-23 of US10327511.

• US7347011B2 (Article of footwear having a textile upper): This patent is relevant for anticipating the idea of differentiating knit structures in various areas of a textile upper to achieve different functional or aesthetic properties (e.g., stretch, breathability, durability). This is relevant to claims 4, 5, 6, 15, 16, 17, 18, 19, 20, and 21.

The combination of a seamless knit upper with different knit structures and the use of hot melt yarn appear to be individually disclosed in the prior art. The distinguishing features of US10327511 would then likely reside in the specific integration of the wingtip pattern and broguing (line of holes) directly into the seamless knit, and the precise arrangement of different knit structures adjacent to the broguing to form that pattern, which is not explicitly and fully detailed in the cited prior art. The design patents (USD293386S, USD394739S, USD401398S) show the ornamental wingtip and broguing, but not in a unitary, seamlessly knitted structure with functional knit differentiation.

The present analysis assesses the obviousness of US Patent 10,327,511 under 35 U.S.C. § 103, based on the prior art references explicitly cited within the "Citations" section of the patent document. It is important to note that without the full text of these cited patents, the analysis relies on the titles, assignees, and the common understanding of the technologies implied by these titles in the field of footwear and textile manufacturing.

US Patent 10,327,511 describes a shoe with a knit upper of unitary one-piece construction, formed during a knitting process. Key features include a knitted wingtip pattern, which comprises medial and lateral lines of broguing formed by knitted holes. The knitted element may also include areas of different knit structures (e.g., jersey and pointelle stitch) that define the wingtip pattern or are adjacent to the brogueing. The patent also claims methods for manufacturing such an upper.

Combinations of Prior Art References and Motivations for Obviousness

A Person Having Ordinary Skill in the Art (POSITA) in footwear and textile manufacturing would have been motivated to combine elements from the cited prior art to arrive at the claimed invention, particularly given the pursuit of automated manufacturing, material efficiency, comfort, and the adaptation of classic aesthetics to modern production methods.

Combination 1: Seamless Knit Upper with Integrated Decorative Patterns, including Brogueing

References:

• US20120255201A1 (Dashamerica, Inc. D/B/A Pearl Izumi Usa, Inc.): "Seamless upper for footwear and method for making the same".
• US20150342285A1 (Nike, Inc.): "Method Of Making An Article Of Footwear Including Knitting A Knitted Component Of Warp Knit Construction Forming A Seamless Bootie With Tucked-In Portion".
• USD394739S (The Rockport Company, Inc.): "Shoe upper" (illustrating a wingtip style).
• USD401398S (The Rockport Company, Inc.): "Shoe upper" (illustrating a wingtip style).
• General knowledge in the art: Capabilities of knitting machines to form openwork patterns or holes.

Motivation to Combine:
References US20120255201A1 and US20150342285A1 clearly disclose or suggest the core concept of a unitary one-piece knitted upper that is seamlessly constructed on a knitting machine, encompassing various anatomical regions of a foot (e.g., heel, midfoot, metatarsal, ball, toe regions). These patents highlight the desire for seamless construction to improve comfort, reduce manufacturing steps, and potentially lower material waste.

Concurrently, wingtip patterns with broguing (decorative perforations) are a long-established and popular aesthetic in traditional footwear, as evidenced by design patents like USD394739S and USD401398S, which depict shoe uppers that would be recognized by a POSITA as having wingtip styling.

A POSITA, seeking to expand the market appeal of seamless knit footwear, would be motivated to adapt classic shoe aesthetics to the modern knit upper technology. The challenge would be to integrate these traditional designs, particularly the wingtip pattern and its characteristic broguing, directly into the knitting process rather than adding them as post-knitting operations (like cutting or punching holes into finished fabric). Modern computer-controlled knitting machines are well-known to be capable of creating various patterns, textures, and even openwork structures or holes (e.g., for ventilation or eyelets) as an inherent part of the knitting process. Therefore, it would be an obvious design choice for a POSITA to program such a machine to knit patterns and holes in the configuration of a wingtip brogue, thereby achieving the desired aesthetic seamlessly and efficiently. This combination would leverage the benefits of seamless knitting while offering a visually appealing and familiar footwear style. The convergence of brogueing portions towards an apex, as described in US10327511 claim 1, is also a standard feature of wingtip designs that a POSITA would naturally incorporate.

Combination 2: Seamless Knit Upper with Differentiated Knit Structures for Pattern Definition and Aesthetic Enhancement

References:

• US20120255201A1 (Dashamerica, Inc. D/B/A Pearl Izumi Usa, Inc.): "Seamless upper for footwear and method for making the same".
• US20150342285A1 (Nike, Inc.): "Method Of Making An Article Of Footwear Including Knitting A Knitted Component Of Warp Knit Construction Forming A Seamless Bootie With Tucked-In Portion".
• General knowledge in the art: Standard knitting practices involve using different stitch types (e.g., jersey, pointelle, rib) within a single knitted article to achieve variations in texture, elasticity, breathability, and aesthetic differentiation.
• USD394739S (The Rockport Company, Inc.): "Shoe upper" (for wingtip aesthetic).
• US6910288B2 (Nike, Inc.): "Footwear incorporating a textile with fusible filaments and fibers" (for yarn types and post-knitting shaping).

Motivation to Combine:
Starting again from the basis of a seamless, unitary knit upper (US20120255201A1, US20150342285A1), a POSITA would seek to further enhance both the functionality and aesthetics. In knitting, employing different stitch types within a single garment is a common technique to create distinct areas; for example, a jersey stitch creates a smooth, dense fabric, while a pointelle stitch creates a more open, decorative, and breathable fabric.

When applying this to a wingtip pattern on a knit upper, a POSITA would be motivated to use different knit structures to visually demarcate the wingtip elements and provide textural contrast, mimicking the traditional construction of leather wingtips which often use different leathers or layered panels. For instance, using a tighter jersey stitch for the main body of the toe region and a more open pointelle stitch for adjacent metatarsal regions (as described in claims 4 and 6 of US10327511) would be an obvious way to create a distinct visual and textural boundary. This differentiation could also offer functional benefits, such as localized breathability or flexibility. The placement of the knitted brogueing (holes) adjacent to the boundary between these different knit areas (claim 4) would be a logical design choice, reinforcing the visual separation and emulating the precise lines of traditional brogueing.

Furthermore, the inclusion of specific yarn compositions, such as covered spandex and hot melt yarns, as claimed in US10327511 (e.g., claims 7-14), is also addressed by existing prior art. US6910288B2, for example, discloses "Footwear incorporating a textile with fusible filaments and fibers," where fusible filaments (like hot melt yarns) are used for shaping and structural integrity. A POSITA would be motivated to combine the seamless knitting techniques with the known benefits of hot melt yarns for thermoforming and stabilizing the knitted structure around a last, as described in US10327511, thereby creating a durable and well-formed shoe. The specific linear densities and mass percentages of the yarns would be routine optimization for desired material properties.

In summary, the combination of known seamless knitting techniques for uppers, the universally recognized aesthetic of wingtip shoes with broguing, and the established practice of using varying knit structures and functional yarns within a single knitted article would render the claimed invention in US10327511 obvious to a person having ordinary skill in the art. The motivation stems from a desire to combine the manufacturing advantages and comfort of knit uppers with classic footwear styling and functional material properties.