Where does Tomoe Engineering Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tomoe Engineering Co., Ltd. ranks #23,550 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 Tomoe Engineering Co., Ltd. hold?

Tomoe Engineering Co., Ltd. holds 12 US utility patents granted between 2015 and 2024, spanning 6 technology areas.

What is Tomoe Engineering Co., Ltd.'s Innovation Score?

Tomoe Engineering Co., Ltd. has an Innovation Score of 28.9 out of 100 (29th 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 Tomoe Engineering Co., Ltd. focus on?

Tomoe Engineering Co., Ltd.'s top technology area is B04B (Centrifuges) with 10 patents, ranking #20 of 143 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Tomoe Engineering Co., Ltd.'s patent grant rate increasing or decreasing?

Tomoe Engineering Co., Ltd.'s recent grant velocity is -29% 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 Tomoe Engineering Co., Ltd.'s patents?

Tomoe Engineering Co., Ltd.'s patents average 7.8 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 Tomoe Engineering 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

Tomoe Engineering Co., Ltd.

USPTO PatentsView assignee record - 12 granted patents across 6 technology areas, recorded in grant years 2015–2024. 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: B04B (Centrifuges).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Tomoe ranks #23,550 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 6 technology areas.

#23,550
of 49,997 US assignees by volume: 29th percentile
by Innovation Score (28.9/100): 7.8
avg claims per patent: -29%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R23550 · Foreign Corporation #23,550 · 12 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 12 grants
MID-PACK #23,550/49,997
PHOTO-FINISH Thyroscope
CPC-NARROW B04B · 6 areas
INNOV-THIN 28.9/100
CLAIMS-SPARSE 7.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -29% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Thyroscope Inc. (±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 Tomoe’s 28.9 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 8.9 pts (31%) Velocity 6.7 pts (23%) Breadth 8.7 pts (30%) Claim depth 4.7 pts (16%)

Qualcomm Incorporated · highest

85
Tomoe Engineering · this assignee

29
3D Lighting… · lowest

7

What this shows Tomoe's Innovation Score is 28.9/100 (29th 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 Tomoe?

Each dot is one of Tomoe’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). Tomoe’s own 7.8 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.

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

Where Tomoe's grants concentrate

Tomoe Engineering Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 83.3% of grants classified under B04B (Centrifuges). Peak complete grant year is 2015 (4 grants) versus a trough of 1 in 2019. By volume, Tomoe sits between Thyroscope Inc. and Tozo Inc.

Tomoe's three-year grant acceleration

Tomoe Engineering Co., Ltd. shows 3 grants in 2022–2024 against only 3 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.

Thyroscope

12
TI Automotive (He…

12
TMD Friction Serv…

12
Tomi Environmenta…

12
Toppan Forms

12
Touch Biometrix

12
Tower Ipco

12
Tozo

12
Tomoe Engineering ◀

12

What this shows Tomoe holds 12 patents at rank #23,511, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tomoe

By rank, the assignees closest to #23,511 in granted patent volume.

Leaders in B04B (Centrifuges)

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

Tomoe's Innovation Score vs. every tracked assignee

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

29 29th percentile higher than 29% 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 · 2015–2024

Grants by year

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

View data table

Tomoe Engineering Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	33.3%
2016	2	16.7%
2019	1	8.3%
2020	2	16.7%
2022	1	8.3%
2023	1	8.3%
2024	1	8.3%

Which technologies does Tomoe Engineering Co., Ltd. patent most?

B04B - Centrifuges 10

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 3

F23G - Cremation FURNACES; Consuming Waste Products BY Combustion 2

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 2

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 1

B01D - Separation 1

Top 6 of 6 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

Tomoe Engineering Co., Ltd.'s patent record in context - here's where to go next.

Tomoe Engineering Co., Ltd.'s lead technology class is B04B (Centrifuges), 83.3% of its portfolio - see every assignee active in that class. Explore B04B
Ranked #23,550 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tomoe Engineering Co., Ltd. against Thyroscope Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.9/100 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.