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

According to USPTO PatentsView (2015–2025 granted utility patents), Rohm Co., Ltd. ranks #138 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 Rohm Co., Ltd. hold?

Rohm Co., Ltd. holds 2,753 US utility patents granted between 2015 and 2025, spanning 154 technology areas.

What is Rohm Co., Ltd.'s Innovation Score?

Rohm Co., Ltd. has an Innovation Score of 68.0 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Rohm Co., Ltd. focus on?

Rohm Co., Ltd.'s top technology area is H01L (Semiconductor Devices NOT Covered BY Class H10) with 1,124 patents, ranking #21 of 3,373 assignees active in that subclass. Grants appear in 154 CPC subclasses total.

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

Rohm Co., Ltd.'s recent grant velocity is -10% 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 Rohm Co., Ltd.'s patents?

Rohm Co., Ltd.'s patents average 15.9 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 Rohm 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

Rohm Co., Ltd.

USPTO PatentsView assignee record - 2,753 granted patents across 154 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: H01L (Semiconductor Devices NOT Covered BY Class H10).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Rohm ranks #138 of 49,997 tracked US assignees by granted-patent volume, with 2,753 patents across 154 technology areas.

#138
of 49,997 US assignees by volume: Top 1%
by Innovation Score (68.0/100): 15.9
avg claims per patent: -10%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R138 · Foreign Corporation #138 · 2,753 grants

GRANTS-LARGE · TOP-DECILE · NEAR-PEER · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-LARGE 2.8K grants
TOP-DECILE #138/49,997
NEAR-PEER Fraunhofer-Gesellsch…
CPC-WIDE H01L · 154 areas
INNOV-STRONG 68.0/100
CLAIMS-RICH 15.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -10% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. (±10 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 Rohm’s 68.0 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 27.4 pts (40%) Velocity 6.1 pts (9%) Breadth 25.0 pts (37%) Claim depth 9.6 pts (14%)

Qualcomm Incorporated · highest

85
Basf SE · near

68
Arm · near

68
Universal Display · near

68
Altria Client Services · near

68
Rohm · this assignee

68
3D Lighting… · lowest

7

What this shows Rohm's Innovation Score is 68.0/100 (top 1% 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 Rohm?

Each dot is one of Rohm’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). Rohm’s own 15.9 claims/patent is at or below the 16.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Rohm's grant cadence moved

Between 2020–2024, Rohm Co., Ltd. received 1,218 grants versus 1,358 in 2015–2019 (-10% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 307 grants and bottomed in 2022 at 196. Lead class H01L accounts for 40.8% of the portfolio across 154 subclasses. Volume neighbours: NXP B.V. (#134) and Fuji Electric Co., Ltd. (#142).

Rohm's three-year grant acceleration

From 2019–2021 to 2022–2024, Rohm Co., Ltd. moved from 781 to 712 grants (0.91x 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 #1,438. See the growth leaderboard.

NXP B V

2,783
Salesforce com

2,773
Wells Fargo Bank…

2,773
Fraunhofer-gesell…

2,763
Rohm ◀

2,753
Audi

2,738
CNH Industrial Am…

2,690
NXP USA

2,671
Fuji Electric

2,654

What this shows Rohm holds 2,753 patents at rank #138, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Rohm

By rank, the assignees closest to #138 in granted patent volume.

Leaders in H01L (Semiconductor Devices NOT Covered BY Class H10)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Rohm, neither rank-band nor same-CPC leaders (those blocks stay above). In H01L (Semiconductor Devices NOT Covered BY Class H10), Rohm ranks #21 of 3,373 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (68 here).

Altria Client Services LLC 68 Arm Limited 68 Universal Display Corporation 68 Basf SE 68

Similar claim depth

Nearest assignees by average claims per patent (15.9 here).

Thermo King LLC 15.9 avg Danisco US Inc. 15.9 avg Sensata Technologies, Inc. 15.9 avg Sony Pictures Entertainment Inc. 15.9 avg

Rohm's Innovation Score vs. every tracked assignee

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

68 Top 1% higher than 99% 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

Rohm Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	247	9.0%
2016	286	10.4%
2017	288	10.5%
2018	262	9.5%
2019	275	10.0%
2020	270	9.8%
2021	236	8.6%
2022	196	7.1%
2023	209	7.6%
2024	307	11.2%
2025partial year	177	6.4%

Which technologies does Rohm Co., Ltd. patent most?

H01L - Semiconductor Devices NOT Covered BY Class H10 1,124

H10D - Inorganic Electric Semiconductor Devices 707

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 516

H03K - Pulse Technique 291

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 227

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 201

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 151

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 140

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 132

G06F - Electric Digital Data Processing 126

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 116

G05F - Systems FOR Regulating Electric OR Magnetic Variables 116

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 88

H02H - Emergency Protective Circuit Arrangements 85

H01C - Resistors 68

Top 15 of 154 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

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

Rohm Co., Ltd.'s lead technology class is H01L (Semiconductor Devices NOT Covered BY Class H10), 40.8% of its portfolio - see every assignee active in that class. Explore H01L
Ranked #138 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Rohm Co., Ltd. against NXP B.V., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 68.0/100 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.