Where does THE SUN Lock Company Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), THE SUN Lock Company Limited ranks #9,646 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 THE SUN Lock Company Limited hold?

THE SUN Lock Company Limited holds 33 US utility patents granted between 2015 and 2025, spanning 7 technology areas.

What is THE SUN Lock Company Limited's Innovation Score?

THE SUN Lock Company Limited has an Innovation Score of 33.3 out of 100 (44th 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 THE SUN Lock Company Limited focus on?

THE SUN Lock Company Limited's top technology area is E05B (LOCKS; Accessories THEREFOR; Handcuffs) with 27 patents, ranking #33 of 815 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is THE SUN Lock Company Limited's patent grant rate increasing or decreasing?

THE SUN Lock Company Limited's recent grant velocity is -12% 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 THE SUN Lock Company Limited's patents?

THE SUN Lock Company Limited's patents average 12.2 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 THE SUN Lock Company 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 2015–2025 USPTO PatentsView Foreign Corporation

THE SUN Lock Company Limited

USPTO PatentsView assignee record - 33 granted patents across 7 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: E05B (LOCKS; Accessories THEREFOR; Handcuffs).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, THE ranks #9,646 of 49,997 tracked US assignees by granted-patent volume, with 33 patents across 7 technology areas.

#9,646
of 49,997 US assignees by volume: 44th percentile
by Innovation Score (33.3/100): 12.2
avg claims per patent: -12%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9646 · Foreign Corporation #9,646 · 33 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 33 grants
UPPER-Q #9,646/49,997
PHOTO-FINISH Taiga Motors
CPC-NARROW E05B · 7 areas
INNOV-THIN 33.3/100
CLAIMS-RICH 12.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -12% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Taiga Motors 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 THE’s 33.3 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 12.2 pts (37%) Velocity 4.4 pts (13%) Breadth 9.4 pts (28%) Claim depth 7.3 pts (22%)

Qualcomm Incorporated · highest

85
Alert Media · near

33
Imation · near

33
Raymx Microelectronics · near

33
THE SUN Lock · this assignee

33
Ukima Chemicals &… · near

33
3D Lighting… · lowest

7

What this shows THE's Innovation Score is 33.3/100 (44th 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 THE?

Each dot is one of THE’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). THE’s own 12.2 claims/patent is at or below the 17.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where THE's grants concentrate

THE SUN Lock Company Limited is a focused PatentsView assignee: 7 CPC subclasses with 81.8% of grants classified under E05B (LOCKS; Accessories THEREFOR; Handcuffs). Peak complete grant year is 2019 (5 grants) versus a trough of 2 in 2018. By volume, THE sits between Taiga Motors Inc. and Tohoku Techno Arch Co., Ltd..

THE's three-year grant acceleration

THE SUN Lock Company Limited shows 8 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.

Taiga Motors

33
Tata Steel Nederl…

33
Terydon

33
THE Calany Holdin…

33
Tianjin Bytedance…

33
Tiny PCB

33
Titan Health & Se…

33
Tohoku Techno Arch

33
THE SUN Lock ◀

33

What this shows THE holds 33 patents at rank #9,637, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near THE

By rank, the assignees closest to #9,637 in granted patent volume.

Leaders in E05B (Locks)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for THE, neither rank-band nor same-CPC leaders (those blocks stay above). In E05B (Locks), THE ranks #33 of 815 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (33 here).

Raymx Microelectronics, Corp. 33 Imation Corp. 33 Ukima Chemicals & Color MFG. Co., Ltd. 33 Alert Media, Inc. 33

THE's Innovation Score vs. every tracked assignee

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

33 44th percentile higher than 44% 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

THE SUN Lock Company Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	12.1%
2016	3	9.1%
2017	3	9.1%
2018	2	6.1%
2019	5	15.2%
2020	3	9.1%
2021	4	12.1%
2022	3	9.1%
2023	2	6.1%
2024	3	9.1%
2025partial year	1	3.0%

Which technologies does THE SUN Lock Company Limited patent most?

E05B - LOCKS; Accessories THEREFOR; Handcuffs 27

Y10T - Technical Subjects Covered BY Former US Classification 7

G07C - Time OR Attendance REGISTERS; Registering OR Indicating THE Working OF MACHINES; Generating Random NUMBERS; Voting OR Lottery APPARATUS; Arrangements, Systems OR Apparatus FOR Checking NOT Provided FOR Elsewhere 5

A45C - PURSES; LUGGAGE; Hand Carried Bags 1

A44B - Buttons, Pins, Buckles, Slide Fasteners, OR THE Like 1

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 1

G06F - Electric Digital Data Processing 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

THE SUN Lock Company Limited's patent record in context - here's where to go next.

THE SUN Lock Company Limited's lead technology class is E05B (LOCKS; Accessories THEREFOR; Handcuffs), 81.8% of its portfolio - see every assignee active in that class. Explore E05B
Ranked #9,646 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare THE SUN Lock Company Limited against Taiga Motors Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.3/100 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.