PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Rohm Co., Ltd.

USPTO PatentsView assignee record - 2,753 granted patents across 154 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10).

Explore the portfolio See the ranking
2,753
Total patents granted
154
CPC technology areas
15.9
Avg claims per patent
+3%
5-year filing velocity

The verdict

Rohm holds 2,753 US patents across 154 technology areas, rank #138 of 50,000 tracked assignees.

#138
of 50,000 US assignees by volume
Top 1%
by Innovation Score (68.0/100)
15.9
avg claims per patent
+3%
filing velocity, last 5 yrs

Portfolio overview

Rohm Co., Ltd. has been granted 2,753 US utility patents between 2015 and 2025, placing Rohm Co., Ltd. at rank #138 across all assignees tracked by PlainPatent. This portfolio spans 154 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.9 claims per patent with primary concentration in H01L (SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10). As a Foreign Corporation, Rohm Co., Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Rohm sits between NXP B.v. (2,783 patents, rank #134) and FUJI Electric Co., Ltd. (2,654 patents, rank #142) - the closest US assignees by grant volume. The composite Innovation Score of 68.0/100 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 1,395 grants, compared with 1,358 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. Rohm Co., Ltd.'s 15.9 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Rohm Co., Ltd. against peers pursuing similar technology classes.

Who files at Rohm's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

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.

Source USPTO PatentsView, granted utility patents As of 2015–2025

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.

Rohm's Innovation Score vs. every tracked assignee

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

68 Top 1% higher than 99% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). Below this entry. 50–60: 5,058 US assignees (10%). Below this entry. 60–70: 1,537 US assignees (3%). This entry sits in this band. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

150200250300350 20152016201720182019202020212022202320242025 177
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%
2025 177 6.4%

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

Top 15 of 154 technology areas

Patent Moat Analysis

Portfolio Volume Strong
Tech Breadth Diversified
Claim Depth Standard
Velocity Growing

Where it ranks

Overall rank by patents

#138

Across all tracked assignees

Innovation Score

68.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Rohm Co., Ltd. hold?
Rohm Co., Ltd. holds 2,753 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 154 CPC subclasses total.
Is Rohm Co., Ltd.'s patent filing rate increasing or decreasing?
Rohm Co., Ltd.'s recent filing velocity is +3% compared to the prior five-year period. The company is maintaining or growing its patent output.
What does claim depth mean for Rohm Co., Ltd.'s patents?
Rohm Co., Ltd.'s patents average 15.9 claims each. This falls within the standard range, providing solid legal coverage.
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.

How to use this portfolio

Rohm's 2,753 grants land it in the top 1% by Innovation Score, but volume alone doesn't tell you where the strength sits.

  • Read that count against the largest US assignees before treating it as dominance - Rohm ranks #138 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in H01L - see who else leads that technology area. H01L leaders
  • Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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

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.