Where does Tong Lung Metal Industry Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tong Lung Metal Industry Co., Ltd. ranks #10,486 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 Tong Lung Metal Industry Co., Ltd. hold?

Tong Lung Metal Industry Co., Ltd. holds 30 US utility patents granted between 2015 and 2025, spanning 10 technology areas.

What is Tong Lung Metal Industry Co., Ltd.'s Innovation Score?

Tong Lung Metal Industry Co., Ltd. has an Innovation Score of 32.6 out of 100 (42nd 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 Tong Lung Metal Industry Co., Ltd. focus on?

Tong Lung Metal Industry Co., Ltd.'s top technology area is E05B (LOCKS; Accessories THEREFOR; Handcuffs) with 10 patents, ranking #101 of 815 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

Is Tong Lung Metal Industry Co., Ltd.'s patent grant rate increasing or decreasing?

Tong Lung Metal Industry 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 Tong Lung Metal Industry Co., Ltd.'s patents?

Tong Lung Metal Industry Co., Ltd.'s patents average 6.4 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 Tong Lung Metal Industry 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

Tong Lung Metal Industry Co., Ltd.

USPTO PatentsView assignee record - 30 granted patents across 10 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, Tong ranks #10,486 of 49,997 tracked US assignees by granted-patent volume, with 30 patents across 10 technology areas.

#10,486
of 49,997 US assignees by volume: 42nd percentile
by Innovation Score (32.6/100): 6.4
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R10486 · Foreign Corporation #10,486 · 30 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 30 grants
UPPER-Q #10,486/49,997
PHOTO-FINISH Tangle Teezer
CPC-FOCUS E05B · 10 areas
INNOV-THIN 32.6/100
CLAIMS-SPARSE 6.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Tangle Teezer 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 Tong’s 32.6 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 11.9 pts (37%) Velocity 5.7 pts (17%) Breadth 11.2 pts (34%) Claim depth 3.8 pts (12%)

Qualcomm Incorporated · highest

85
DynaEnergetics & KG · near

33
SpineSmith Partners · near

33
Tong Lung Metal… · this assignee

33
Toshiba Samsung… · near

33
VCE · near

33
3D Lighting… · lowest

7

What this shows Tong's Innovation Score is 32.6/100 (42nd 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 Tong?

Each dot is one of Tong’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). Tong’s own 6.4 claims/patent is at or below the 12.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tong's grants concentrate

Tong Lung Metal Industry Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 33.3% of grants classified under E05B (LOCKS; Accessories THEREFOR; Handcuffs). Peak complete grant year is 2015 (5 grants) versus a trough of 1 in 2017. By volume, Tong sits between THE Secant Group, LLC and Technology Innovation Momentum Fund (Israel) Limited Partnership.

Tong's three-year grant acceleration

Tong Lung Metal Industry Co., Ltd. shows 6 grants in 2022–2024 against only 7 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.

THE Secant Group

30
Thule Organizatio…

30
Tmaxdataco

30
Tong Hsing Indust…

30
TPC Group

30
Turun Yliopisto

30
Tangle Teezer

30
Technology Innova…

30
Tong Lung Metal I… ◀

30

What this shows Tong holds 30 patents at rank #10,478, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tong

By rank, the assignees closest to #10,478 in granted patent volume.

Leaders in E05B (Locks)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tong, neither rank-band nor same-CPC leaders (those blocks stay above). In E05B (Locks), Tong ranks #101 of 815 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (33 here).

SpineSmith Partners, L.P. 33 DynaEnergetics GmbH & Co. KG 33 Toshiba Samsung Storage Technology Korea Corporation 33 VCE Company, LLC 33

Tong's Innovation Score vs. every tracked assignee

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

33 42nd percentile higher than 42% 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

Tong Lung Metal Industry Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	16.7%
2016	2	6.7%
2017	1	3.3%
2018	1	3.3%
2019	2	6.7%
2020	2	6.7%
2021	3	10.0%
2022	2	6.7%
2023	1	3.3%
2024	3	10.0%
2025partial year	8	26.7%

Which technologies does Tong Lung Metal Industry Co., Ltd. patent most?

E05B - LOCKS; Accessories THEREFOR; Handcuffs 10

G06F - Electric Digital Data Processing 3

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 3

Y10T - Technical Subjects Covered BY Former US Classification 2

H03K - Pulse Technique 2

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 1

G01J - Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry 1

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 1

Top 10 of 10 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

Tong Lung Metal Industry Co., Ltd.'s patent record in context - here's where to go next.

Tong Lung Metal Industry Co., Ltd.'s lead technology class is E05B (LOCKS; Accessories THEREFOR; Handcuffs), 33.3% of its portfolio - see every assignee active in that class. Explore E05B
Ranked #10,486 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tong Lung Metal Industry Co., Ltd. against THE Secant Group, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 32.6/100 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.