Where does Hongfujin Precision Electrons (YANTAI) Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Hongfujin Precision Electrons (YANTAI) Co., Ltd. ranks #47,477 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 Hongfujin Precision Electrons (YANTAI) Co., Ltd. hold?

Hongfujin Precision Electrons (YANTAI) Co., Ltd. holds 5 US utility patents granted between 2023 and 2025, spanning 7 technology areas.

What is Hongfujin Precision Electrons (YANTAI) Co., Ltd.'s Innovation Score?

Hongfujin Precision Electrons (YANTAI) Co., Ltd. has an Innovation Score of 44.5 out of 100 (top 25% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Hongfujin Precision Electrons (YANTAI) Co., Ltd. focus on?

Hongfujin Precision Electrons (YANTAI) Co., Ltd.'s top technology area is H01H (Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices) with 3 patents, ranking #327 of 1,006 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Hongfujin Precision Electrons (YANTAI) Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Hongfujin Precision Electrons (YANTAI) Co., Ltd..

What does claim depth mean for Hongfujin Precision Electrons (YANTAI) Co., Ltd.'s patents?

Hongfujin Precision Electrons (YANTAI) Co., Ltd.'s patents average 15.0 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Hongfujin Precision Electrons (YANTAI) Co., Ltd.

Q: How is the Hongfujin Precision Electrons (YANTAI) 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 PatentsView assignee record - 5 granted patents across 7 technology areas, recorded in grant years 2023–2025. 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: H01H (Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Hongfujin ranks #47,477 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 7 technology areas.

#47,477
of 49,997 US assignees by volume: Top 25%
by Innovation Score (44.5/100): 15.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R47477 · Foreign Corporation #47,477 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,477/49,997
PHOTO-FINISH Homeease Industrial
CPC-NARROW H01H · 7 areas
INNOV-PAR 44.5/100
CLAIMS-RICH 15.0 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Homeease Industrial Co., Ltd. (±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 Hongfujin’s 44.5 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 6.2 pts (14%) Velocity 20.0 pts (45%) Breadth 9.4 pts (21%) Claim depth 9.0 pts (20%)

Qualcomm Incorporated · highest

85
Hongfujin Precision… · this assignee

45
3D Lighting… · lowest

7

What this shows Hongfujin's Innovation Score is 44.5/100 (top 25% 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 Hongfujin?

Each dot is one of Hongfujin’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). Hongfujin’s own 15.0 claims/patent is ABOVE the 9.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Hongfujin's grants concentrate

Hongfujin Precision Electrons (YANTAI) Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 60% of grants classified under H01H (Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2024. By volume, Hongfujin sits between Homeease Industrial Co., Ltd. and Horkos Corp.

Hongfujin's three-year grant acceleration

Hongfujin Precision Electrons (YANTAI) Co., Ltd. shows 3 grants in 2022–2024 against only 0 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.

Homeease Industri…

5
Homeway Technology

5
Honbusankei

5
Honeywell Romania…

5
Hongkong Fingu De…

5
Hori

5
Horizon Tire

5
Horkos

5
Hongfujin Precisi… ◀

5

What this shows Hongfujin holds 5 patents at rank #47,391, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Hongfujin

By rank, the assignees closest to #47,391 in granted patent volume.

Leaders in H01H (Electric Switches)

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

Hongfujin's Innovation Score vs. every tracked assignee

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

45 Top 25% higher than 75% 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 · 2023–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Hongfujin Precision Electrons (YANTAI) Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	2	40.0%
2024	1	20.0%
2025partial year	2	40.0%

Which technologies does Hongfujin Precision Electrons (YANTAI) Co., Ltd. patent most?

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 3

G05G - Control Devices OR Systems Insofar AS Characterised BY Mechanical Features Only 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

G06F - Electric Digital Data Processing 1

A63F - Card, Board, OR Roulette GAMES; Indoor Games Using Small Moving Playing BODIES; Video GAMES; Games NOT Otherwise Provided FOR 1

G06V - Image OR Video Recognition OR Understanding 1

A63B - Apparatus FOR Physical Training, Gymnastics, Swimming, Climbing, OR FENCING; Ball GAMES; Training Equipment 1

Top 7 of 7 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

Hongfujin Precision Electrons (YANTAI) Co., Ltd.'s patent record in context - here's where to go next.

Hongfujin Precision Electrons (YANTAI) Co., Ltd.'s lead technology class is H01H (Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices), 60% of its portfolio - see every assignee active in that class. Explore H01H
Ranked #47,477 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Hongfujin Precision Electrons (YANTAI) Co., Ltd. against Homeease Industrial Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.5/100 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.