Where does Okamura Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Okamura Corporation ranks #1,915 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 Okamura Corporation hold?

Okamura Corporation holds 210 US utility patents granted between 2015 and 2025, spanning 16 technology areas.

What is Okamura Corporation's Innovation Score?

Okamura Corporation has an Innovation Score of 35.3 out of 100 (top 50% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Okamura Corporation focus on?

Okamura Corporation's top technology area is A47C (CHAIRS; SOFAS; Beds) with 20 patents, ranking #34 of 728 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

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

Okamura Corporation's recent grant velocity is -49% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

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

Okamura Corporation's patents average 2.2 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 Okamura 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

Okamura Corporation

USPTO PatentsView assignee record - 210 granted patents across 16 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: A47C (CHAIRS; SOFAS; Beds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Okamura ranks #1,915 of 49,997 tracked US assignees by granted-patent volume, with 210 patents across 16 technology areas.

#1,915
of 49,997 US assignees by volume: Top 50%
by Innovation Score (35.3/100): 2.2
avg claims per patent: -49%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R1915 · Foreign Corporation #1,915 · 210 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 210 grants
TOP-DECILE #1,915/49,997
PHOTO-FINISH Dow Corning
CPC-FOCUS A47C · 16 areas
INNOV-THIN 35.3/100
CLAIMS-SPARSE 2.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -49% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dow Corning Corporation (±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 Okamura’s 35.3 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 18.5 pts (52%) Velocity 1.4 pts (4%) Breadth 14.1 pts (40%) Claim depth 1.3 pts (4%)

Qualcomm Incorporated · highest

85
Bonza Botanicals PTY · near

35
Senju Sprinkler · near

35
Shijiazhuang… · near

35
FH Alliance · near

35
Okamura · this assignee

35
3D Lighting… · lowest

7

What this shows Okamura's Innovation Score is 35.3/100 (top 50% 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 Okamura?

Each dot is one of Okamura’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). Okamura’s own 2.2 claims/patent is at or below the 12.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Okamura's grants concentrate

Okamura Corporation is a focused PatentsView assignee: 16 CPC subclasses with 9.5% of grants classified under A47C (CHAIRS; SOFAS; Beds). Peak complete grant year is 2017 (45 grants) versus a trough of 3 in 2024. By volume, Okamura sits between Dow Corning Corporation and Sato Corporation.

Okamura's three-year grant acceleration

From 2019–2021 to 2022–2024, Okamura Corporation moved from 79 to 16 grants (0.20x 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 #3,090. See the growth leaderboard.

Dow Corning

210
Hitachi High-tech…

210
Hitachi Energy

210
National Universi…

210
Opentv

210
PHC Holdings

210
Panasonic Avionics

210
Sato

210
Okamura ◀

210

What this shows Okamura holds 210 patents at rank #1,914, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Okamura

By rank, the assignees closest to #1,914 in granted patent volume.

Leaders in A47C (Chairs)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Okamura, neither rank-band nor same-CPC leaders (those blocks stay above). In A47C (Chairs), Okamura ranks #34 of 728 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (35 here).

FH Alliance Inc. 35 Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. 35 Bonza Botanicals PTY., Ltd. 35 Senju Sprinkler Co., Ltd. 35

Similar claim depth

Nearest assignees by average claims per patent (2.2 here).

InterDesign, Inc. 2.2 avg SDS Asia Limited, BVI #1748971 2.2 avg Ningbo Tuotuo River Design Company 2.2 avg Chubby Gorilla, Inc. 2.2 avg

Okamura's Innovation Score vs. every tracked assignee

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

35 Top 50% higher than 50% 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

Okamura Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	22	10.5%
2016	14	6.7%
2017	45	21.4%
2018	29	13.8%
2019	26	12.4%
2020	38	18.1%
2021	15	7.1%
2022	7	3.3%
2023	6	2.9%
2024	3	1.4%
2025partial year	5	2.4%

Which technologies does Okamura Corporation patent most?

A47C - CHAIRS; SOFAS; Beds 20

A47B - TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture 5

E04B - General Building CONSTRUCTIONS; Walls, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; Insulation OR Other Protection OF Buildings 2

D03D - Woven FABRICS; Methods OF WEAVING; Looms 1

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 1

Y10T - Technical Subjects Covered BY Former US Classification 1

G06F - Electric Digital Data Processing 1

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 1

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 1

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 1

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 1

F16H - Gearing 1

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

E05D - Hinges OR Suspension Devices FOR Doors, Windows OR Wings 1

A47G - Household OR Table Equipment 1

Top 15 of 16 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

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

Okamura Corporation's lead technology class is A47C (CHAIRS; SOFAS; Beds), 9.5% of its portfolio - see every assignee active in that class. Explore A47C
Ranked #1,915 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Okamura Corporation against Dow Corning Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.3/100 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.