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

According to USPTO PatentsView (2015–2025 granted utility patents), Sanken Electric Co., Ltd. ranks #2,074 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 Sanken Electric Co., Ltd. hold?

Sanken Electric Co., Ltd. holds 191 US utility patents granted between 2015 and 2025, spanning 36 technology areas.

What is Sanken Electric Co., Ltd.'s Innovation Score?

Sanken Electric Co., Ltd. has an Innovation Score of 49.0 out of 100 (top 15% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Sanken Electric Co., Ltd.'s recent grant velocity is -61% 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 Sanken Electric Co., Ltd.'s patents?

Sanken Electric Co., Ltd.'s patents average 9.0 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 Sanken Electric 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

Sanken Electric Co., Ltd.

Q: What technology areas does Sanken Electric Co., Ltd. focus on?

Sanken Electric Co., Ltd.'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 80 patents, ranking #59 of 1,541 assignees active in that subclass. Grants appear in 36 CPC subclasses total.

USPTO PatentsView assignee record - 191 granted patents across 36 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: 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;).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sanken ranks #2,074 of 49,997 tracked US assignees by granted-patent volume, with 191 patents across 36 technology areas.

#2,074
of 49,997 US assignees by volume: Top 15%
by Innovation Score (49.0/100): 9.0
avg claims per patent: -61%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2074 · Foreign Corporation #2,074 · 191 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MID 191 grants
TOP-DECILE #2,074/49,997
PHOTO-FINISH Array BioPharma
CPC-FOCUS H02M · 36 areas
INNOV-PAR 49.0/100
CLAIMS-PAR 9.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -61% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Array BioPharma, 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 Sanken’s 49.0 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 18.2 pts (37%) Velocity 4.2 pts (9%) Breadth 21.2 pts (43%) Claim depth 5.4 pts (11%)

Qualcomm Incorporated · highest

85
Brightseed · near

49
Contentful · near

49
LeddarTech · near

49
Sanken Electric · this assignee

49
SIG Technology · near

49
3D Lighting… · lowest

7

What this shows Sanken's Innovation Score is 49.0/100 (top 15% 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 Sanken?

Each dot is one of Sanken’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). Sanken’s own 9.0 claims/patent is at or below the 17.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sanken's grants concentrate

Sanken Electric Co., Ltd. is a focused PatentsView assignee: 36 CPC subclasses with 41.9% of grants classified under 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;). Peak complete grant year is 2016 (36 grants) versus a trough of 4 in 2021. By volume, Sanken sits between Zhejiang Sunny Optical Co., Ltd and Bissell Homecare, Inc..

Sanken's three-year grant acceleration

From 2019–2021 to 2022–2024, Sanken Electric Co., Ltd. moved from 41 to 26 grants (0.63x 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 #2,354. See the growth leaderboard.

Zhejiang Sunny Op…

192
Array Biopharma

191
Isco International

191
Nortonlifelock

191
Stolle Machinery

191
THE Volcano

191
Sanken Electric ◀

191
Autostore Technol…

190
Bissell Homecare

190

What this shows Sanken holds 191 patents at rank #2,074, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sanken

By rank, the assignees closest to #2,074 in granted patent volume.

Leaders in H02M (Apparatus FOR Conversion Between AC AND AC)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Sanken, neither rank-band nor same-CPC leaders (those blocks stay above). In H02M (Apparatus FOR Conversion Between AC AND AC), Sanken ranks #59 of 1,541 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (49 here).

Contentful GmbH 49 LeddarTech Inc. 49 Brightseed, Inc. 49 SIG Technology AG 49

Similar claim depth

Nearest assignees by average claims per patent (9.0 here).

Suntory Holdings Limited 9.0 avg GN Netcom A/S 9.0 avg Bang & Olufsen A/S 9.0 avg Mirise Technologies Corporation 9.0 avg

Sanken's Innovation Score vs. every tracked assignee

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

49 Top 15% higher than 85% 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

Sanken Electric Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	33	17.3%
2016	36	18.8%
2017	28	14.7%
2018	21	11.0%
2019	15	7.9%
2020	22	11.5%
2021	4	2.1%
2022	7	3.7%
2023	7	3.7%
2024	12	6.3%
2025partial year	6	3.1%

Which technologies does Sanken Electric Co., Ltd. patent most?

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 80

H10D - Inorganic Electric Semiconductor Devices 65

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 61

H01L - Semiconductor Devices NOT Covered BY Class H10 35

H03K - Pulse Technique 17

G06F - Electric Digital Data Processing 17

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 10

H03M - CODING; DECODING; Code Conversion IN General 7

H02H - Emergency Protective Circuit Arrangements 6

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 6

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 5

Y02D - Climate Change Mitigation Technologies IN Information AND Communication Technologies [ICT], I.E. Information AND Communication Technologies Aiming AT THE Reduction OF Their OWN Energy USE 5

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 4

Top 15 of 36 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

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

Sanken Electric Co., Ltd.'s lead technology class 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;), 41.9% of its portfolio - see every assignee active in that class. Explore H02M
Ranked #2,074 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sanken Electric Co., Ltd. against Zhejiang Sunny Optical Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.0/100 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.