Where does Sinox Lock (Kunshan) Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sinox Lock (Kunshan) Co., Ltd. ranks #33,334 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 Sinox Lock (Kunshan) Co., Ltd. hold?

Sinox Lock (Kunshan) Co., Ltd. holds 8 US utility patents granted between 2015 and 2023, spanning 7 technology areas.

What is Sinox Lock (Kunshan) Co., Ltd.'s Innovation Score?

Sinox Lock (Kunshan) Co., Ltd. has an Innovation Score of 27.8 out of 100 (25th 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 Sinox Lock (Kunshan) Co., Ltd. focus on?

Sinox Lock (Kunshan) Co., Ltd.'s top technology area is E05B (LOCKS; Accessories THEREFOR; Handcuffs) with 6 patents, ranking #167 of 815 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Sinox Lock (Kunshan) Co., Ltd.'s patent grant rate increasing or decreasing?

Sinox Lock (Kunshan) Co., Ltd.'s recent grant velocity is +0% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Sinox Lock (Kunshan) Co., Ltd.'s patents?

Sinox Lock (Kunshan) Co., Ltd.'s patents average 10.6 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 Sinox Lock (Kunshan) 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

Sinox Lock (Kunshan) Co., Ltd.

USPTO PatentsView assignee record - 8 granted patents across 7 technology areas, recorded in grant years 2015–2023. 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

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Sinox ranks #33,334 of 49,997 tracked US assignees by granted-patent volume, with 8 patents across 7 technology areas.

#33,334
of 49,997 US assignees by volume: 25th percentile
by Innovation Score (27.8/100): 10.6
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R33334 · Foreign Corporation #33,334 · 8 grants

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

GRANTS-MICRO 8 grants
MID-PACK #33,334/49,997
PHOTO-FINISH Silicon Space…
CPC-NARROW E05B · 7 areas
INNOV-THIN 27.8/100
CLAIMS-PAR 10.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Silicon Space Technology 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 Sinox’s 27.8 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 7.6 pts (27%) Velocity 4.4 pts (16%) Breadth 9.4 pts (34%) Claim depth 6.4 pts (23%)

Qualcomm Incorporated · highest

85
Sinox Lock (Kunshan) · this assignee

28
3D Lighting… · lowest

7

What this shows Sinox's Innovation Score is 27.8/100 (25th 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 Sinox?

Each dot is one of Sinox’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). Sinox’s own 10.6 claims/patent is at or below the 19.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Sinox's grants concentrate

Sinox Lock (Kunshan) Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 75% of grants classified under E05B (LOCKS; Accessories THEREFOR; Handcuffs). Peak complete grant year is 2017 (2 grants) versus a trough of 1 in 2015. By volume, Sinox sits between Silicon Space Technology Corporation and Sirona Medical Technologies, Inc..

Sinox's three-year grant acceleration

Sinox Lock (Kunshan) Co., Ltd. shows 2 grants in 2022–2024 against only 3 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.

Silicon Space Tec…

8
Silverbow Develop…

8
Simpson Performan…

8
Sinewatts

8
Sinusys

8
Sioux Chief Mfg

8
Sirchie Acquisiti…

8
Sirona Medical

8
Sinox Lock (Kunsh… ◀

8

What this shows Sinox holds 8 patents at rank #33,403, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sinox

By rank, the assignees closest to #33,403 in granted patent volume.

Leaders in E05B (Locks)

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

Sinox's Innovation Score vs. every tracked assignee

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

28 25th percentile higher than 25% 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 · 2015–2023

Grants by year

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

View data table

Sinox Lock (Kunshan) Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	12.5%
2017	2	25.0%
2019	1	12.5%
2020	2	25.0%
2022	1	12.5%
2023	1	12.5%

Which technologies does Sinox Lock (Kunshan) Co., Ltd. patent most?

E05B - LOCKS; Accessories THEREFOR; Handcuffs 6

A44B - Buttons, Pins, Buckles, Slide Fasteners, OR THE Like 3

A45C - PURSES; LUGGAGE; Hand Carried Bags 2

Y10T - Technical Subjects Covered BY Former US Classification 2

E05C - Bolts OR Fastening Devices FOR Wings, Specially FOR Doors OR Windows 1

B62B - Hand-propelled Vehicles, e.g. Hand Carts OR PERAMBULATORS; Sledges 1

B60B - Vehicle Wheels ; CASTORS; Axles FOR Wheels OR CASTORS; Increasing Wheel Adhesion 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

Sinox Lock (Kunshan) Co., Ltd.'s patent record in context - here's where to go next.

Sinox Lock (Kunshan) Co., Ltd.'s lead technology class is E05B (LOCKS; Accessories THEREFOR; Handcuffs), 75% of its portfolio - see every assignee active in that class. Explore E05B
Ranked #33,334 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sinox Lock (Kunshan) Co., Ltd. against Silicon Space Technology Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.8/100 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.