Overall rank by patents
#42,707
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
Rohm Powervation Limited
USPTO PatentsView assignee record - 6 granted patents across 3 technology areas, active 2016–2019. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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;).
6
Total patents granted
3
CPC technology areas
19.5
Avg claims per patent
-100%
5-year filing velocity
The verdict
Rohm holds 6 US patents across 3 technology areas, rank #42,707 of 50,000 tracked assignees.
- #42,707
- of 50,000 US assignees by volume
- Top 85%
- by Innovation Score (24.6/100)
- 19.5
- avg claims per patent
- -100%
- filing velocity, last 5 yrs
Portfolio overview
Rohm Powervation Limited has been granted 6 US utility patents between 2016 and 2019, placing Rohm Powervation Limited at rank #42,707 across all assignees tracked by PlainPatent. This portfolio spans 3 distinct Cooperative Patent Classification (CPC) subclasses, averaging 19.5 claims per patent with primary concentration in 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;). As a Foreign Corporation, Rohm Powervation Limited is one of the more focused assignees in the PatentsView dataset. By volume, Rohm sits between Rockwell Collins France S.a.s. (6 patents, rank #42,703) and Roly Llc (6 patents, rank #42,711) - the closest US assignees by grant volume. The composite Innovation Score of 24.6/100 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 0 grants, compared with 6 in the 2015–2019 window, a -100% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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 Powervation Limited's 19.5 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while specialization in 3 subclasses reflects a tightly scoped invention area. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Rohm Powervation Limited 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 ◀
- Rockwell Collins…
Rockwell Collins France S.A.S.
6 patents
- Rodnick
RodNick LLC
6 patents
- Rodin Therapeutics
Rodin Therapeutics, Inc.
6 patents
- Rofin-sinar Laser
Rofin-Sinar Laser GmbH
6 patents
- Rokko Systems Pte
Rokko Systems Pte Ltd
6 patents
- Rollease Acmeda
Rollease Acmeda, Inc.
6 patents
- Rolling Optics AB
Rolling Optics AB
6 patents
- Roly
Roly LLC
6 patents
- Rohm Powervation ◀
Rohm Powervation Limited
6 patents
What this shows Rohm holds 6 patents at rank #42,707, 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 #42,707 in granted patent volume.
- Rockwell Collins France S.a.s. #42,703 · 6 patents
- Rodnick Llc #42,704 · 6 patents
- Rodin Therapeutics, Inc. #42,705 · 6 patents
- Rofin-sinar Laser Gmbh #42,706 · 6 patents
- Rokko Systems Pte Ltd #42,708 · 6 patents
- Rollease Acmeda, Inc. #42,709 · 6 patents
- Rolling Optics AB #42,710 · 6 patents
- Roly Llc #42,711 · 6 patents
Leaders in H02M (Apparatus FOR Conversion Between AC AND AC)
Other assignees with the most granted patents in Rohm's primary technology class.
- Mitsubishi Electric Corporation 1,101 in class
- Texas Instruments Incorporated 945 in class
- FUJI Electric Co., Ltd. 565 in class
- Infineon Technologies Austria Ag 537 in class
- Denso Corporation 536 in class
- Rohm Co., Ltd. 516 in class
- Delta Electronics, Inc. 417 in class
- Semiconductor Components Industries, Llc 358 in class
Rohm's Innovation Score vs. every tracked assignee
Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)
25 Top 85% higher than 15% of 50,000 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
Grants by year
Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.
View data table
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2016 | 1 | 16.7% |
| 2017 | 1 | 16.7% |
| 2018 | 3 | 50.0% |
| 2019 | 1 | 16.7% |
Which technologies does Rohm Powervation Limited patent most?
Top 3 of 3 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Specialized
Claim Depth Standard
Velocity Declining
Frequently Asked Questions
How many patents does Rohm Powervation Limited hold?
Rohm Powervation Limited holds 6 US granted patents filed between 2016 and 2019, spanning 3 technology areas.
What is Rohm Powervation Limited's Innovation Score?
Rohm Powervation Limited has an Innovation Score of 24.6 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 Powervation Limited focus on?
Rohm Powervation Limited's top technology area is 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) with 6 patents. The company has filed patents in 3 CPC subclasses total.
Is Rohm Powervation Limited's patent filing rate increasing or decreasing?
Rohm Powervation Limited's recent filing velocity is -100% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Rohm Powervation Limited's patents?
Rohm Powervation Limited's patents average 19.5 claims each. This falls within the standard range, providing solid legal coverage.
How is the Rohm Powervation Limited 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 6 grants land it in the top 85% 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 #42,707 of 50,000. Top 50 holders
- Most of this portfolio concentrates in H02M - see who else leads that technology area. H02M 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.
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.