Overall rank by patents
#2,090
Across all tracked assignees
USPTO PatentsView assignee record — 189 granted patents across 54 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: G05B (CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS).
OKUMA CORPORATION has been granted 189 US utility patents between 2015 and 2025, placing OKUMA CORPORATION at rank #2,090 across all assignees tracked by PlainPatent. This portfolio spans 54 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.4 claims per patent with primary concentration in G05B (CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS). As a Foreign Corporation, OKUMA CORPORATION is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 52.7/100 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 96 grants, compared with 93 in the 2015–2019 window — a +3% 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. OKUMA CORPORATION's 6.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 54 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark OKUMA CORPORATION against peers pursuing similar technology classes.
Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
International Business Machines Corporation
72,926 patents
Canon Kabushiki Kaisha
34,378 patents
LG ELECTRONICS INC.
32,607 patents
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
Apple Inc.
30,560 patents
QUALCOMM Incorporated
30,354 patents
Intel Corporation
27,498 patents
OKUMA CORPORATION
189 patents
What this shows OKUMA holds 189 patents — placing it at rank #2,090 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2015 | 28 | 14.8% |
| 2016 | 10 | 5.3% |
| 2017 | 14 | 7.4% |
| 2018 | 22 | 11.6% |
| 2019 | 19 | 10.1% |
| 2020 | 17 | 9.0% |
| 2021 | 20 | 10.6% |
| 2022 | 14 | 7.4% |
| 2023 | 18 | 9.5% |
| 2024 | 16 | 8.5% |
| 2025 | 11 | 5.8% |
Top 15 of 54 technology areas
Overall rank by patents
#2,090
Across all tracked assignees
52.7 out of 100
OKUMA CORPORATION's primary CPC class — all holders and yearly trends
See where OKUMA CORPORATION ranks among the largest US patent assignees
Browse every CPC technology area by patent activity
The four dimensions behind the Innovation Score
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.