Where does Littelfuse, Japan G.K. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Littelfuse, Japan G.K. ranks #20,018 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 Littelfuse, Japan G.K. hold?

Littelfuse, Japan G.K. holds 14 US utility patents granted between 2016 and 2025, spanning 9 technology areas.

What is Littelfuse, Japan G.K.'s Innovation Score?

Littelfuse, Japan G.K. has an Innovation Score of 26.6 out of 100 (21st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Littelfuse, Japan G.K. focus on?

Littelfuse, Japan G.K.'s top technology area is H01C (Resistors) with 8 patents, ranking #21 of 167 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Littelfuse, Japan G.K.'s patent grant rate increasing or decreasing?

Littelfuse, Japan G.K.'s recent grant velocity is -100% 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 Littelfuse, Japan G.K.'s patents?

Littelfuse, Japan G.K.'s patents average 11.0 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 Littelfuse, Japan G.K. 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

Littelfuse, Japan G.K.

USPTO PatentsView assignee record - 14 granted patents across 9 technology areas, recorded in grant years 2016–2025. 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: H01C (Resistors).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Littelfuse ranks #20,018 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 9 technology areas.

#20,018
of 49,997 US assignees by volume: 21st percentile
by Innovation Score (26.6/100): 11.0
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20018 · Foreign Corporation #20,018 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 14 grants
MID-PACK #20,018/49,997
PHOTO-FINISH Lightforce USA
CPC-NARROW H01C · 9 areas
INNOV-THIN 26.6/100
CLAIMS-PAR 11.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Lightforce USA, 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 Littelfuse’s 26.6 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 9.4 pts (35%) Velocity 0.0 pts (0%) Breadth 10.6 pts (40%) Claim depth 6.6 pts (25%)

Qualcomm Incorporated · highest

85
Littelfuse Japan G K · this assignee

27
3D Lighting… · lowest

7

What this shows Littelfuse's Innovation Score is 26.6/100 (21st 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 Littelfuse?

Each dot is one of Littelfuse’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). Littelfuse’s own 11.0 claims/patent is ABOVE the 8.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Littelfuse's grants concentrate

Littelfuse, Japan G.K. is a focused PatentsView assignee: 9 CPC subclasses with 57.1% of grants classified under H01C (Resistors). Peak complete grant year is 2018 (5 grants) versus a trough of 1 in 2016. By volume, Littelfuse sits between Lightforce USA, Inc. and MAG IAS GMBH.

Lightforce USA

14
Lilly Brush

14
Lion Copolymers G…

14
Lion Energy

14
Livewire EV

14
Load Lugger

14
Lumenpulse Lighti…

14
MAG IAS

14
Littelfuse Japan… ◀

14

What this shows Littelfuse holds 14 patents at rank #20,028, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Littelfuse

By rank, the assignees closest to #20,028 in granted patent volume.

Leaders in H01C (Resistors)

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

Littelfuse's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Littelfuse, Japan G.K. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	7.1%
2017	3	21.4%
2018	5	35.7%
2019	4	28.6%
2025partial year	1	7.1%

Which technologies does Littelfuse, Japan G.K. patent most?

H01C - Resistors 8

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 7

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 6

H02H - Emergency Protective Circuit Arrangements 6

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

Y10T - Technical Subjects Covered BY Former US Classification 1

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 1

Top 9 of 9 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

Littelfuse, Japan G.K.'s patent record in context - here's where to go next.

Littelfuse, Japan G.K.'s lead technology class is H01C (Resistors), 57.1% of its portfolio - see every assignee active in that class. Explore H01C
Ranked #20,018 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Littelfuse, Japan G.K. against Lightforce USA, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.6/100 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.