Where does NOK Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), NOK Corporation ranks #1,029 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does NOK Corporation hold?

NOK Corporation holds 425 US utility patents granted between 2015 and 2025, spanning 103 technology areas.

What is NOK Corporation's Innovation Score?

NOK Corporation has an Innovation Score of 55.9 out of 100 (top 6% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does NOK Corporation focus on?

NOK Corporation's top technology area is F16J (Pistons ; CYLINDERS; Sealings) with 257 patents, ranking #1 of 753 assignees active in that subclass. Grants appear in 103 CPC subclasses total.

Is NOK Corporation's patent grant rate increasing or decreasing?

NOK Corporation's recent grant velocity is +20% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for NOK Corporation's patents?

NOK Corporation's patents average 6.2 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

How is the NOK Corporation patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

NOK Corporation

USPTO PatentsView assignee record - 425 granted patents across 103 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: F16J (Pistons ; CYLINDERS; Sealings).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, NOK ranks #1,029 of 49,997 tracked US assignees by granted-patent volume, with 425 patents across 103 technology areas.

#1,029
of 49,997 US assignees by volume: Top 6%
by Innovation Score (55.9/100): 6.2
avg claims per patent: +20%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1029 · Foreign Corporation #1,029 · 425 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 425 grants
TOP-DECILE #1,029/49,997
PHOTO-FINISH Hitachi Chemical
CPC-WIDE F16J · 103 areas
INNOV-PAR 55.9/100
CLAIMS-SPARSE 6.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +20% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Hitachi Chemical Company, 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.

How NOK’s 55.9 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 20.9 pts (37%) Velocity 6.3 pts (11%) Breadth 25.0 pts (45%) Claim depth 3.7 pts (7%)

Qualcomm Incorporated · highest

85
Clemson University… · near

56
Ndsu Research… · near

56
NOK · this assignee

56
Purac Biochem BV · near

56
UNIVERSITÉ D'aix-mar… · near

56
3D Lighting… · lowest

7

What this shows NOK's Innovation Score is 55.9/100 (top 6% 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.

Does more volume mean deeper claims for NOK?

Each dot is one of NOK’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). NOK’s own 6.2 claims/patent is at or below the 17.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

NOK vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How NOK's grant cadence moved

Between 2020–2024, NOK Corporation received 221 grants versus 184 in 2015–2019 (+20% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2019 at 61 grants and bottomed in 2015 at 25. Lead class F16J accounts for 60.5% of the portfolio across 103 subclasses. Volume neighbours: PGS Geophysical AS (#1,025) and Isuzu Motors Limited (#1,033).

NOK's three-year grant acceleration

From 2019–2021 to 2022–2024, NOK Corporation moved from 145 to 137 grants (0.94x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,342. See the growth leaderboard.

PGS Geophysical AS

427
University OF Sou…

427
Gracenote

426
Hitachi Chemical

425
Zoom Video Commun…

425
NOK ◀

425
Iowa State Univer…

424
SRI International

424
Isuzu Motors

423

What this shows NOK holds 425 patents at rank #1,029, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near NOK

By rank, the assignees closest to #1,029 in granted patent volume.

Leaders in F16J (Pistons)

Other assignees with the most granted patents in NOK's primary technology class.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for NOK, neither rank-band nor same-CPC leaders (those blocks stay above). In F16J (Pistons), NOK ranks #1 of 753 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (56 here).

Ndsu Research Foundation 56 UNIVERSITÉ D'aix-marseille 56 Purac Biochem BV 56 Clemson University Research Foundation 56

Similar claim depth

Nearest assignees by average claims per patent (6.2 here).

Mitsubishi Pencil Company, Limited 6.2 avg Grip Holdings LLC 6.2 avg Lixil Corporation 6.2 avg Tsubakimoto Chain Co. 6.2 avg

NOK's Innovation Score vs. every tracked assignee

Composite of portfolio volume, grant velocity, technology breadth, and claim depth (0–100)

56 Top 6% higher than 94% 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

USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

NOK Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	25	5.9%
2016	36	8.5%
2017	30	7.1%
2018	32	7.5%
2019	61	14.4%
2020	54	12.7%
2021	30	7.1%
2022	59	13.9%
2023	36	8.5%
2024	42	9.9%
2025partial year	20	4.7%

Which technologies does NOK Corporation patent most?

F16J - Pistons ; CYLINDERS; Sealings 257

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 65

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 62

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 59

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 48

C08L - Compositions OF Macromolecular Compounds 45

F16F - SPRINGS; SHOCK-ABSORBERS; Means FOR Damping Vibration 38

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 36

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 31

G03G - ELECTROGRAPHY; ELECTROPHOTOGRAPHY; Magnetography 31

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 27

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 25

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 22

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 20

Y10T - Technical Subjects Covered BY Former US Classification 20

Top 15 of 103 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

NOK Corporation's patent record in context - here's where to go next.

NOK Corporation's lead technology class is F16J (Pistons ; CYLINDERS; Sealings), 60.5% of its portfolio - see every assignee active in that class. Explore F16J
Ranked #1,029 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare NOK Corporation against PGS Geophysical AS, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 55.9/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled by PlainPatent , US Patent Intelligence Editorial Process · May 15, 2026

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.