Overall rank by patents
#9,328
of 49,997 tracked assignees
USPTO PatentsView assignee record - 34 granted patents across 44 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: C08G (Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds).
The verdict
According to USPTO PatentsView, National ranks #9,328 of 49,997 tracked US assignees by granted-patent volume, with 34 patents across 44 technology areas.
USPTO PatentsView assignee plate
Corpus R9328 · Foreign Corporation #9,328 · 34 grants
GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-UP · BOOK-FULL
Nearest grant-volume peer: Medtronic Ventor Technologies Ltd. (±0 grants)
Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.
Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.
Qualcomm Incorporated · highest
85 score
Digital Ally · near
49 score
National University… · this assignee
49 score
Shanghai Institute… · near
49 score
Herakles · near
49 score
Kulite Semiconductor… · near
49 score
3D Lighting… · lowest
7 score
What this shows National's Innovation Score is 48.7/100 (top 16% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.
National University Corporation, Iwate University is a focused PatentsView assignee: 44 CPC subclasses with 38.2% of grants classified under C08G (Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds). Peak complete grant year is 2023 (5 grants) versus a trough of 1 in 2016. By volume, National sits between Medtronic Ventor Technologies Ltd. and Nidec Seimitsu Corporation.
National University Corporation, Iwate University shows 10 grants in 2022–2024 against only 10 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.
Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀
Medtronic Ventor Technologies Ltd.
34 patents
Mercury Plastics LLC
34 patents
Merrimack Pharmaceuticals, Inc.
34 patents
Messer Industries USA, Inc.
34 patents
Neofect Co., Ltd.
34 patents
Nextremity Solutions, Inc.
34 patents
Nidec GPM GMBH
34 patents
Nidec Seimitsu Corporation
34 patents
National University Corporation, Iwate University
34 patents
What this shows National holds 34 patents at rank #9,328, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.
By rank, the assignees closest to #9,328 in granted patent volume.
Other assignees with the most granted patents in National's primary technology class.
Two PlainPatent-derived peer sets for National, neither rank-band nor same-CPC leaders (those blocks stay above).
Nearest assignees by Innovation Score (49 here).
National's Innovation Score vs. every tracked assignee
Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)
49 Top 16% higher than 84% of 49,997 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 | 4 | 11.8% |
| 2016 | 1 | 2.9% |
| 2017 | 4 | 11.8% |
| 2018 | 1 | 2.9% |
| 2019 | 4 | 11.8% |
| 2020 | 3 | 8.8% |
| 2021 | 3 | 8.8% |
| 2022 | 2 | 5.9% |
| 2023 | 5 | 14.7% |
| 2024 | 3 | 8.8% |
| 2025partial year | 4 | 11.8% |
Top 15 of 44 technology areas
Overall rank by patents
#9,328
of 49,997 tracked assignees
48.7 out of 100
What to do with this data
National University Corporation, Iwate University's patent record in context - here's where to go next.
Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.
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.