Lowe v. Shieldmark: Federal Circuit Summarily Affirms Floor Marking Tape Ruling
Clifford A. Lowe appealed a district court infringement decision against Shieldmark, Inc. over floor marking tape patent US10214664B2. The Federal Circuit summarily affirmed the district court in just 58 days, awarding costs — but not attorney fees — to Shieldmark.
Summary Affirmance in 58 Days: Federal Circuit Backs Shieldmark on Floor Tape Patent
Clifford A. Lowe filed this appeal at the Court of Appeals for the Federal Circuit on July 9, 2025, challenging a district court ruling in an infringement action involving US10214664B2 — a patent covering floor marking tape technology. The defendant, Shieldmark, Inc., is a manufacturer operating in the industrial floor marking and safety tape market. Lowe, represented by Renner, Kenner, Greive, Bobak, Taylor & Weber, LPA, sought to overturn the lower court’s decision on infringement grounds.
The Federal Circuit disposed of the appeal swiftly, granting a motion for summary affirmance on September 5, 2025 — just 58 days after filing. The court found the outcome of the appeal was not in doubt, applying the summary affirmance standard, which signals the lower court’s decision was clearly correct on the merits. Costs were awarded to Shieldmark under the Federal Rules of Appellate Procedure, though the court stopped short of imposing sanctions or attorney fees, declining to characterise the appeal as wholly frivolous.
The 58-day resolution is striking: summary affirmance at the Federal Circuit is reserved for cases where the court finds no substantial question meriting full briefing and oral argument. The speed and procedural posture suggest Lowe faced significant headwinds from the outset of the appeal. What drove the original district court ruling — and the specific infringement theories advanced — remains obscured by the public record, as the underlying district court docket details are not reflected in this appellate disposition.
Filing to Appeal Dismissed in 58 days
58-day appellate resolution — significantly faster than the Federal Circuit median of ~18 months, consistent with summary disposition
Federal Circuit affirms: what the summary ruling means for both parties
Summary affirmance: the Federal Circuit’s clearest signal of no reversible error
A summary affirmance means the Federal Circuit granted a motion to affirm without full merits briefing or oral argument. The court found the outcome ‘not in doubt’ — the legal standard for this procedure. It signals that the district court’s decision was so clearly correct that expending further judicial resources was unwarranted. This is a high bar and represents one of the most decisive outcomes an appellee can achieve at the Federal Circuit.
No reversible error foundLowe’s infringement appeal ends with no relief and a cost award against him
The summary affirmance leaves the district court’s ruling fully intact against Lowe. His patent US10214664B2 survives in force — its validity is not directly affected by this appellate outcome — but the infringement claims against Shieldmark have now been rejected at both the district and appellate levels. Lowe also faces a cost award in favour of the defendant. Further challenge at this stage would require a petition for certiorari to the Supreme Court, which is rarely granted in patent infringement cases.
Infringement claims rejectedShieldmark prevails at both levels — cost award confirms appellate vindication
Shieldmark, Inc. secured a complete appellate victory: the Federal Circuit affirmed the district court and awarded costs in its favour. The court’s express finding that the appeal outcome was ‘not in doubt’ strengthens Shieldmark’s position in any future dispute involving these patents or related infringement theories. Notably, the court declined to award attorney fees, suggesting the appeal, while weak, was not characterised as bad-faith or vexatious litigation.
Appellate win + costs awardedAffirmed district ruling raises the bar for future floor marking tape IP claims
For competitors and product teams in the industrial floor marking and safety tape sector, this double-level rejection of Lowe’s infringement claims suggests that the scope of US10214664B2 as asserted here has been tested and found insufficient. Companies operating in adjacent product categories should note that the patent remains live — only the specific infringement theory advanced by Lowe was rejected. Independent FTO analysis against the patent’s claim scope is still advisable for manufacturers in this space.
Patent live; infringement theory rejectedFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Clifford A. Lowe | Individual | Patent holder asserting infringement of US10214664B2 — floor marking tape technologySearch in Eureka ↗ |
| Defendant | Shieldmark, Inc. | Company | Shieldmark, Inc. — industrial floor marking tape manufacturer and alleged infringerSearch in Eureka ↗ |
| Plaintiff counsel | Laura J. Gentilcore | Attorney | Counsel for Clifford A. LoweSearch in Eureka ↗ |
| Plaintiff counsel | Ray L. Weber | Attorney | Counsel for Clifford A. LoweSearch in Eureka ↗ |
| Plaintiff law firm | Renner, Kenner, Greive, Bobak, Taylor & Weber, LPA | Law Firm | Representing Clifford A. LoweSearch in Eureka ↗ |
| Defendant counsel | Howard Wernow | Attorney | Counsel for Shieldmark, Inc.Search in Eureka ↗ |
| Defendant counsel | James F. McCarthy III | Attorney | Counsel for Shieldmark, Inc.Search in Eureka ↗ |
| Defendant law firm | Sand, Sebolt & Wernow Co., LPA | Law Firm | Representing Shieldmark, Inc.Search in Eureka ↗ |
| Presiding judge | Judge N/A | Judge | Court of Appeals for the Federal CircuitSearch in Eureka ↗ |
Official order — verbatim text
The Federal Circuit’s disposition — granting the motion for summary affirmance while expressly noting ‘the outcome of this appeal is not in doubt’ — reflects application of the court’s summary affirmance standard, which requires that no substantial question exists as to the correctness of the decision below. The court’s simultaneous refusal to impose FRAP 38 attorney fee sanctions, while still awarding costs to Shieldmark, draws a deliberate distinction between a legally deficient appeal and a frivolous one. This calibrated language suggests the appellate panel found Lowe’s arguments legally insufficient but not wholly without basis, a nuance that may be relevant if related proceedings arise.
US10214664B2 — Floor Marking Tape Adhesive Technology
US10214664B2 (application number US14/747905) covers floor marking tape technology — adhesive tape products designed for marking floors in industrial, warehouse, and commercial environments. Floor marking tape is widely used for safety lane demarcation, equipment positioning, and compliance with workplace safety standards such as OSHA. The patent’s issuance reflects a recognised inventive contribution in the formulation or construction of such tape products, though the specific claim scope and technical differentiation from prior art is not detailed in the appellate record.
The strategic significance of this patent lies in the floor safety and industrial marking market, which is a competitive, volume-driven segment serving logistics, manufacturing, and facilities management sectors. Patent enforcement in this space typically targets product design-arounds and manufacturing processes. With the Federal Circuit now having affirmed the district court’s rejection of the infringement claims as asserted, the patent’s enforceability against Shieldmark’s specific product configuration is effectively exhausted under the doctrines litigated. However, US10214664B2 remains a live asset against other parties and product variants not covered by this litigation.
Should you run an FTO against US10214664B2?
Any manufacturer, distributor, or retailer of floor marking tape, adhesive safety marking products, or related industrial flooring solutions should assess their exposure to US10214664B2. The Federal Circuit’s affirmance validates the district court’s ruling on the specific claims asserted against Shieldmark — but the patent’s full claim set may extend to other product configurations. Companies planning to launch or expand in the floor marking tape category, or those sourcing from OEM manufacturers, should not treat this litigation outcome as a blanket clearance.
PatSnap Eureka’s FTO Search Agent can map the full claim scope of US10214664B2 against your product specifications, identify prior art that may support invalidity arguments, and flag related patents in Lowe’s portfolio that could present further enforcement risk. Eureka’s citation graph and prosecution history analysis tools surface the boundaries the patent examiner drew during prosecution — essential context for any product clearance exercise in this technology area.
Run a freedom-to-operate analysis on US10214664B2 to assess your product’s exposure
Run FTO in Eureka →Similar Federal Circuit appeals in industrial materials patent infringement
Explore comparable floor marking tape and industrial adhesive product patent infringement cases appealed to the Federal Circuit, including summary affirmance dispositions.
What Lowe v. Shieldmark signals for industrial marking tape IP enforcement
A 58-day summary affirmance at the Federal Circuit carries practical weight for patent holders and manufacturers in the floor marking and industrial safety space.
Summary affirmance is a rare, high-confidence signal from the Federal Circuit
The Federal Circuit reserves summary affirmance for cases where the merits are not genuinely in dispute. Patent holders considering appeal of an adverse district court ruling in the industrial materials space should treat this outcome as a strong indicator that weak appellate cases will be disposed of rapidly — and at cost to the appellant. Early case assessment before filing an appeal is essential.
US10214664B2 remains enforceable — but the asserted claim scope has been tested
The patent was not invalidated; only Lowe’s specific infringement theory against Shieldmark was rejected at both court levels. For floor marking tape manufacturers, this means the patent is still a live enforcement risk under different claim interpretations or against different products. An FTO analysis scoped to US10214664B2’s full claim set — not just this case’s theory — is the appropriate risk management response.
Lowe v Shieldmark — key questions answered
A summary affirmance means the Federal Circuit affirmed the district court’s ruling without full briefing or oral argument, finding the outcome not in doubt. In Lowe v. Shieldmark, this signals the district court’s rejection of Lowe’s infringement claims under US10214664B2 was clearly correct. Costs were awarded to Shieldmark; attorney fees were not imposed.
Yes. The Federal Circuit’s affirmance addressed only the infringement claims Lowe asserted against Shieldmark — it did not invalidate US10214664B2. The patent remains in force and could be asserted against other parties or under different infringement theories. Companies in the floor marking tape sector should conduct independent FTO analysis rather than relying on this outcome as a validity determination.
The Federal Circuit declined to award attorney fees under FRAP 38, which requires an appeal to be wholly frivolous before sanctions are imposed. While the court found the appeal’s outcome not in doubt — justifying summary affirmance — it stopped short of characterising the appeal as bad-faith or entirely without legal basis. This distinction reflects the court’s calibrated approach to sanctions in patent appeals.
US10214664B2 covers floor marking tape — adhesive tape used in industrial, warehouse, and commercial settings to mark safety lanes, equipment zones, and compliance boundaries. The litigation involved allegations that Shieldmark, Inc., a manufacturer in this market, infringed the patent. The district court and Federal Circuit both rejected the infringement claims as asserted.
The Federal Circuit resolved the appeal in 58 days — from filing on July 9, 2025 to disposition on September 5, 2025. This is significantly faster than the Federal Circuit’s typical appellate timeline, which often exceeds 12–18 months. The speed is consistent with summary affirmance procedure, which bypasses full merits briefing and oral argument when the outcome is not in doubt.
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