Where does Delta Electronics (Shanghai) Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Delta Electronics (Shanghai) Co., Ltd. ranks #838 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 Delta Electronics (Shanghai) Co., Ltd. hold?

Delta Electronics (Shanghai) Co., Ltd. holds 543 US utility patents granted between 2015 and 2025, spanning 67 technology areas.

What is Delta Electronics (Shanghai) Co., Ltd.'s Innovation Score?

Delta Electronics (Shanghai) Co., Ltd. has an Innovation Score of 69.3 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%).

Is Delta Electronics (Shanghai) Co., Ltd.'s patent grant rate increasing or decreasing?

Delta Electronics (Shanghai) Co., Ltd.'s recent grant velocity is +68% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Delta Electronics (Shanghai) Co., Ltd.'s patents?

Delta Electronics (Shanghai) Co., Ltd.'s patents average 17.6 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 Delta Electronics (Shanghai) 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

Delta Electronics (Shanghai) Co., Ltd.

Q: What technology areas does Delta Electronics (Shanghai) Co., Ltd. focus on?

Delta Electronics (Shanghai) 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 307 patents, ranking #11 of 1,541 assignees active in that subclass. Grants appear in 67 CPC subclasses total.

USPTO PatentsView assignee record - 543 granted patents across 67 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, Delta ranks #838 of 49,997 tracked US assignees by granted-patent volume, with 543 patents across 67 technology areas.

#838
of 49,997 US assignees by volume: Top 1%
by Innovation Score (69.3/100): 17.6
avg claims per patent: +68%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R838 · Foreign Corporation #838 · 543 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 543 grants
TOP-DECILE #838/49,997
PHOTO-FINISH Aisin
CPC-WIDE H02M · 67 areas
INNOV-STRONG 69.3/100
CLAIMS-RICH 17.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +68% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Aisin Corporation (±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 Delta’s 69.3 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 21.8 pts (32%) Velocity 11.9 pts (17%) Breadth 25.0 pts (36%) Claim depth 10.5 pts (15%)

Qualcomm Incorporated · highest

85
Nokia Solutions AND… · near

69
BIC Violex Single… · near

69
Delta (Shanghai) · this assignee

69
MediaTek Singapore Pte · near

69
Xerox · near

69
3D Lighting… · lowest

7

What this shows Delta's Innovation Score is 69.3/100 (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 Delta?

Each dot is one of Delta’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). Delta’s own 17.6 claims/patent is ABOVE the 13.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

How Delta's grant cadence moved

Between 2020–2024, Delta Electronics (Shanghai) Co., Ltd. received 310 grants versus 184 in 2015–2019 (+68% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2023 at 89 grants and bottomed in 2015 at 26. Lead class H02M accounts for 56.5% of the portfolio across 67 subclasses. Volume neighbours: Alps Alpine Co., Ltd. (#834) and Autoliv Development AB (#842).

Delta's three-year grant acceleration

From 2019–2021 to 2022–2024, Delta Electronics (Shanghai) Co., Ltd. moved from 125 to 224 grants (1.79x 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 #274. See the growth leaderboard.

Alps Alpine

546
Inserm (Institut…

545
Max-planck-gesell…

544
Aisin

543
Digimarc

543
Johnson & Johnson…

543
Xiamen Tianma Mic…

543
Delta (Shanghai) ◀

543
Autoliv Developme…

542

What this shows Delta holds 543 patents at rank #838, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Delta

By rank, the assignees closest to #838 in granted patent volume.

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

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Delta, neither rank-band nor same-CPC leaders (those blocks stay above). In H02M (Apparatus FOR Conversion Between AC AND AC), Delta ranks #11 of 1,541 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (69 here).

BIC Violex Single Member S.A. 69 Nokia Solutions AND Networks OY 69 MediaTek Singapore Pte. Ltd. 69 Xerox Corporation 69

Similar claim depth

Nearest assignees by average claims per patent (17.6 here).

The Regents of the University of Colorado, a Body Corporate 17.6 avg TE Connectivity Germany GmbH 17.6 avg Smith & Nephew, Inc. 17.6 avg GAF Energy LLC 17.6 avg

Delta's Innovation Score vs. every tracked assignee

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

69 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

Delta Electronics (Shanghai) Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	26	4.8%
2016	27	5.0%
2017	40	7.4%
2018	52	9.6%
2019	39	7.2%
2020	42	7.7%
2021	44	8.1%
2022	76	14.0%
2023	89	16.4%
2024	59	10.9%
2025partial year	49	9.0%

Which technologies does Delta Electronics (Shanghai) 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 307

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 140

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 111

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 94

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 91

H01L - Semiconductor Devices NOT Covered BY Class H10 67

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 46

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 42

H03K - Pulse Technique 30

G06F - Electric Digital Data Processing 29

H02H - Emergency Protective Circuit Arrangements 24

Y02T - Climate Change Mitigation Technologies Related TO Transportation 20

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 19

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 19

H10D - Inorganic Electric Semiconductor Devices 18

Top 15 of 67 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

Delta Electronics (Shanghai) Co., Ltd.'s patent record in context - here's where to go next.

Delta Electronics (Shanghai) 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;), 56.5% of its portfolio - see every assignee active in that class. Explore H02M
Ranked #838 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Delta Electronics (Shanghai) Co., Ltd. against Alps Alpine Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 69.3/100 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.