Overall rank by patents
#4,251
Across all tracked assignees
USPTO PatentsView assignee record - 84 granted patents across 34 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS).
The verdict
National holds 84 US patents across 34 technology areas, rank #4,251 of 50,000 tracked assignees.
National Health Research Institutes has been granted 84 US utility patents between 2015 and 2025, placing National Health Research Institutes at rank #4,251 across all assignees tracked by PlainPatent. This portfolio spans 34 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.3 claims per patent with primary concentration in A61P (SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS). As a Foreign Corporation, National Health Research Institutes is one of the more focused assignees in the PatentsView dataset. By volume, National sits between Jtekt Europe (84 patents, rank #4,247) and Prince Castle Llc (84 patents, rank #4,255) - the closest US assignees by grant volume. The composite Innovation Score of 51.2/100 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 45 grants, compared with 39 in the 2015–2019 window, a +15% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. The Foreign 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 Health Research Institutes's 14.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 34 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark National Health Research Institutes against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
JTEKT EUROPE
84 patents
KITAGAWA INDUSTRIES CO., LTD.
84 patents
M. TECHNIQUE CO., LTD.
84 patents
Mallinckrodt Hospital Products IP Unlimited Company
84 patents
Nisca Corporation
84 patents
Optis Cellular Technology, LLC
84 patents
Orthosensor Inc.
84 patents
Prince Castle LLC
84 patents
National Health Research Institutes
84 patents
What this shows National holds 84 patents at rank #4,251, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #4,251 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)
51 Top 12% higher than 88% 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 | 11 | 13.1% |
| 2016 | 9 | 10.7% |
| 2017 | 4 | 4.8% |
| 2018 | 7 | 8.3% |
| 2019 | 8 | 9.5% |
| 2020 | 8 | 9.5% |
| 2021 | 7 | 8.3% |
| 2022 | 8 | 9.5% |
| 2023 | 7 | 8.3% |
| 2024 | 8 | 9.5% |
| 2025 | 7 | 8.3% |
Top 15 of 34 technology areas
Overall rank by patents
#4,251
Across all tracked assignees
51.2 out of 100
How to use this portfolio
National's 84 grants land it in the top 12% 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.