Where does Bel Fuse (Macao Commercial Offshore) Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Bel Fuse (Macao Commercial Offshore) Limited ranks #15,139 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 Bel Fuse (Macao Commercial Offshore) Limited hold?

Bel Fuse (Macao Commercial Offshore) Limited holds 19 US utility patents granted between 2015 and 2024, spanning 12 technology areas.

What is Bel Fuse (Macao Commercial Offshore) Limited's Innovation Score?

Bel Fuse (Macao Commercial Offshore) Limited has an Innovation Score of 32.5 out of 100 (41st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Bel Fuse (Macao Commercial Offshore) Limited's patent grant rate increasing or decreasing?

Bel Fuse (Macao Commercial Offshore) Limited'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 Bel Fuse (Macao Commercial Offshore) Limited's patents?

Bel Fuse (Macao Commercial Offshore) Limited's patents average 15.6 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Bel Fuse (Macao Commercial Offshore) Limited

Q: What technology areas does Bel Fuse (Macao Commercial Offshore) Limited focus on?

Bel Fuse (Macao Commercial Offshore) 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 8 patents, ranking #357 of 1,541 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Q: How is the Bel Fuse (Macao Commercial Offshore) 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.

USPTO PatentsView assignee record - 19 granted patents across 12 technology areas, recorded in grant years 2015–2024. 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

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The verdict

According to USPTO PatentsView, Bel ranks #15,139 of 49,997 tracked US assignees by granted-patent volume, with 19 patents across 12 technology areas.

#15,139
of 49,997 US assignees by volume: 41st percentile
by Innovation Score (32.5/100): 15.6
avg claims per patent: -10%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15139 · Foreign Corporation #15,139 · 19 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-MICRO 19 grants
MID-PACK #15,139/49,997
PHOTO-FINISH Beaverfit
CPC-FOCUS H02M · 12 areas
INNOV-THIN 32.5/100
CLAIMS-RICH 15.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -10% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Beaverfit Limited (±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 Bel’s 32.5 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 10.3 pts (32%) Velocity 0.6 pts (2%) Breadth 12.2 pts (38%) Claim depth 9.3 pts (29%)

Qualcomm Incorporated · highest

85
Bel Fuse (Macao… · this assignee

33
3D Lighting… · lowest

7

What this shows Bel's Innovation Score is 32.5/100 (41st percentile 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 Bel?

Each dot is one of Bel’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). Bel’s own 15.6 claims/patent is ABOVE the 12.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Bel's grants concentrate

Bel Fuse (Macao Commercial Offshore) Limited is a focused PatentsView assignee: 12 CPC subclasses with 42.1% 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 2020 (7 grants) versus a trough of 1 in 2017. By volume, Bel sits between Boge Elastmetall GMBH and Best Accessory Group LLC.

Bel's three-year grant acceleration

Bel Fuse (Macao Commercial Offshore) Limited shows 1 grants in 2022–2024 against only 12 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Boge Elastmetall

19
Bwxt Nuclear Oper…

19
Beaverfit

19
Beijing Smarter E…

19
Bell Biosystems

19
Besi Netherlands…

19
Besi Switzerland

19
Best Accessory Gr…

19
Bel Fuse (Macao C… ◀

19

What this shows Bel holds 19 patents at rank #15,146, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Bel

By rank, the assignees closest to #15,146 in granted patent volume.

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

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

Bel's Innovation Score vs. every tracked assignee

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

33 41st percentile higher than 41% 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 · 2015–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Bel Fuse (Macao Commercial Offshore) Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	10.5%
2016	3	15.8%
2017	1	5.3%
2019	4	21.1%
2020	7	36.8%
2021	1	5.3%
2024	1	5.3%

Which technologies does Bel Fuse (Macao Commercial Offshore) Limited 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 8

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 5

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 5

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 4

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 3

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 3

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 2

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 1

G05F - Systems FOR Regulating Electric OR Magnetic Variables 1

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 1

G06F - Electric Digital Data Processing 1

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 1

Top 12 of 12 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

Bel Fuse (Macao Commercial Offshore) Limited's patent record in context - here's where to go next.

Bel Fuse (Macao Commercial Offshore) Limited'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;), 42.1% of its portfolio - see every assignee active in that class. Explore H02M
Ranked #15,139 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Bel Fuse (Macao Commercial Offshore) Limited against Boge Elastmetall GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.5/100 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.