Where does Ohtake Root Kogyo Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ohtake Root Kogyo Co., Ltd. ranks #49,271 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 Ohtake Root Kogyo Co., Ltd. hold?

Ohtake Root Kogyo Co., Ltd. holds 5 US utility patents granted between 2015 and 2020, spanning 4 technology areas.

What is Ohtake Root Kogyo Co., Ltd.'s Innovation Score?

Ohtake Root Kogyo Co., Ltd. has an Innovation Score of 18.2 out of 100 (5th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Ohtake Root Kogyo Co., Ltd. focus on?

Ohtake Root Kogyo Co., Ltd.'s top technology area is B23P (Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools) with 4 patents, ranking #153 of 1,028 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is Ohtake Root Kogyo Co., Ltd.'s patent grant rate increasing or decreasing?

Ohtake Root Kogyo Co., Ltd.'s recent grant velocity is -75% 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 Ohtake Root Kogyo Co., Ltd.'s patents?

Ohtake Root Kogyo Co., Ltd.'s patents average 8.2 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 Ohtake Root Kogyo Co., Ltd. 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

Ohtake Root Kogyo Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 4 technology areas, recorded in grant years 2015–2020. 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: B23P (Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Ohtake ranks #49,271 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 4 technology areas.

#49,271
of 49,997 US assignees by volume: 5th percentile
by Innovation Score (18.2/100): 8.2
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R49271 · Foreign Corporation #49,271 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #49,271/49,997
PHOTO-FINISH Oerlikon Trading…
CPC-NARROW B23P · 4 areas
INNOV-LOW 18.2/100
CLAIMS-PAR 8.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Oerlikon Trading AG, Truebbach (±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 Ohtake’s 18.2 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 6.2 pts (34%) Velocity 0.0 pts (0%) Breadth 7.1 pts (39%) Claim depth 4.9 pts (27%)

Qualcomm Incorporated · highest

85
Ohtake Root Kogyo · this assignee

18
3D Lighting… · lowest

7

What this shows Ohtake's Innovation Score is 18.2/100 (5th percentile 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 Ohtake?

Each dot is one of Ohtake’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). Ohtake’s own 8.2 claims/patent is at or below the 13.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Ohtake's grants concentrate

Ohtake Root Kogyo Co., Ltd. is a focused PatentsView assignee: 4 CPC subclasses with 80% of grants classified under B23P (Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools). Peak complete grant year is 2015 (2 grants) versus a trough of 1 in 2016. By volume, Ohtake sits between Oerlikon Trading AG, Truebbach and Olympus Terumo Biomaterials Corp..

Oerlikon Trading…

5
OFEK—Eshkolot Res…

5
Officine Metallur…

5
OFS Brands

5
OIL & GAS Tech En…

5
OIL Chem

5
Oil-rite

5
Olympus Terumo Bi…

5
Ohtake Root Kogyo ◀

5

What this shows Ohtake holds 5 patents at rank #49,262, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ohtake

By rank, the assignees closest to #49,262 in granted patent volume.

Leaders in B23P (Metal-working)

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

Ohtake's Innovation Score vs. every tracked assignee

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

18 5th percentile higher than 5% 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 · 2015–2020

Grants by year

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

View data table

Ohtake Root Kogyo Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	40.0%
2016	1	20.0%
2019	1	20.0%
2020	1	20.0%

Which technologies does Ohtake Root Kogyo Co., Ltd. patent most?

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 4

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 2

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 2

A63B - Apparatus FOR Physical Training, Gymnastics, Swimming, Climbing, OR FENCING; Ball GAMES; Training Equipment 1

Top 4 of 4 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

Ohtake Root Kogyo Co., Ltd.'s patent record in context - here's where to go next.

Ohtake Root Kogyo Co., Ltd.'s lead technology class is B23P (Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools), 80% of its portfolio - see every assignee active in that class. Explore B23P
Ranked #49,271 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ohtake Root Kogyo Co., Ltd. against Oerlikon Trading AG, Truebbach, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 18.2/100 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.