Overall rank by patents
#5,865
Across all tracked assignees
USPTO PatentsView assignee record - 58 granted patents across 14 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F16B (DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING).
The verdict
National holds 58 US patents across 14 technology areas, rank #5,865 of 50,000 tracked assignees.
National Nail Corp. has been granted 58 US utility patents between 2015 and 2025, placing National Nail Corp. at rank #5,865 across all assignees tracked by PlainPatent. This portfolio spans 14 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.8 claims per patent with primary concentration in F16B (DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING). As a US Corporation, National Nail Corp. is one of the more focused assignees in the PatentsView dataset. By volume, National sits between Mastercard Asia/pacific PTE. Ltd. (58 patents, rank #5,861) and Polytec Gmbh (58 patents, rank #5,869) - the closest US assignees by grant volume. The composite Innovation Score of 43.1/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.
Filing cadence tells the strategic story. Between 2020 and 2025 the company received 38 grants, compared with 20 in the 2015–2019 window, a +90% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The US Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.
Claim depth and technology breadth together indicate competitive posture. National Nail Corp.'s 12.8 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 14 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark National Nail Corp. against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
MASTERCARD ASIA/PACIFIC PTE. LTD.
58 patents
MATTERSIGHT CORPORATION
58 patents
NIPPON THOMPSON CO., LTD.
58 patents
NORTEK SECURITY & CONTROL
58 patents
OMNI MEDSCI, INC.
58 patents
PIKSEL, INC.
58 patents
PTC Inc.
58 patents
Polytec GmbH
58 patents
National Nail Corp.
58 patents
What this shows National holds 58 patents at rank #5,865, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #5,865 in granted patent volume.
Other assignees with the most granted patents in National's primary technology class.
National's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
43 Top 29% higher than 71% of 50,000 US assignees
Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 7 | 12.1% |
| 2017 | 3 | 5.2% |
| 2018 | 1 | 1.7% |
| 2019 | 9 | 15.5% |
| 2020 | 4 | 6.9% |
| 2021 | 5 | 8.6% |
| 2022 | 3 | 5.2% |
| 2023 | 7 | 12.1% |
| 2024 | 12 | 20.7% |
| 2025 | 7 | 12.1% |
Top 14 of 14 technology areas
Overall rank by patents
#5,865
Across all tracked assignees
43.1 out of 100
How to use this portfolio
National's 58 grants land it in the top 29% by Innovation Score, but volume alone doesn't tell you where the strength sits.
Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.
Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.