Where does Alert Stamping & Manufacturing Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Alert Stamping & Manufacturing Co., Ltd. ranks #38,681 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 Alert Stamping & Manufacturing Co., Ltd. hold?

Alert Stamping & Manufacturing Co., Ltd. holds 6 US utility patents granted between 2015 and 2017, spanning 4 technology areas.

What is Alert Stamping & Manufacturing Co., Ltd.'s Innovation Score?

Alert Stamping & Manufacturing Co., Ltd. has an Innovation Score of 16.0 out of 100 (3rd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Alert Stamping & Manufacturing Co., Ltd.'s patent grant rate increasing or decreasing?

Alert Stamping & Manufacturing Co., Ltd.'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 Alert Stamping & Manufacturing Co., Ltd.'s patents?

Alert Stamping & Manufacturing Co., Ltd.'s patents average 3.7 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 Alert Stamping & Manufacturing 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 US Corporation

Alert Stamping & Manufacturing Co., Ltd.

Q: What technology areas does Alert Stamping & Manufacturing Co., Ltd. focus on?

Alert Stamping & Manufacturing Co., Ltd.'s top technology area is F21K (Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-generating ELEMENTS; Light Sources NOT Otherwise Provided FOR) with 1 patents, ranking #374 of 564 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 4 technology areas, recorded in grant years 2015–2017. 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: F21K (Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-gen).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Alert ranks #38,681 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 4 technology areas.

#38,681
of 49,997 US assignees by volume: 3rd percentile
by Innovation Score (16.0/100): 3.7
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38681 · US Corporation #38,681 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-LOW · CLAIMS-SPARSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #38,681/49,997
PHOTO-FINISH Akina
CPC-NARROW F21K · 4 areas
INNOV-LOW 16.0/100
CLAIMS-SPARSE 3.7 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Akina, 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 Alert’s 16.0 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 6.7 pts (42%) Velocity 0.0 pts (0%) Breadth 7.1 pts (44%) Claim depth 2.2 pts (14%)

Qualcomm Incorporated · highest

85
Alert Stamping &… · this assignee

16
3D Lighting… · lowest

7

What this shows Alert's Innovation Score is 16.0/100 (3rd 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 Alert?

Each dot is one of Alert’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). Alert’s own 3.7 claims/patent is at or below the 15.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Alert's grants concentrate

Alert Stamping & Manufacturing Co., Ltd. is a focused PatentsView assignee: 4 CPC subclasses with 16.7% of grants classified under F21K (Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-gen). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2015. By volume, Alert sits between Akina, Inc and Alkilu Enterprises LLC.

Akina

6
Akvadesign AS

6
Albea Le Treport S

6
Aldelo

6
Alevere Medical

6
Alex Brands Buzz…

6
Alexander Dennis

6
Alkilu Enterprises

6
Alert Stamping &… ◀

6

What this shows Alert holds 6 patents at rank #38,837, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Alert

By rank, the assignees closest to #38,837 in granted patent volume.

Leaders in F21K (Non-electric Light Sources Using Luminescence)

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

Alert's Innovation Score vs. every tracked assignee

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

16 3rd percentile higher than 3% 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 · 2015–2017

Grants by year

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

View data table

Alert Stamping & Manufacturing Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	16.7%
2016	3	50.0%
2017	2	33.3%

Which technologies does Alert Stamping & Manufacturing Co., Ltd. patent most?

F21K - Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-generating ELEMENTS; Light Sources NOT Otherwise Provided FOR 1

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 1

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 1

F21L - Lighting Devices OR Systems Thereof, Being Portable OR Specially Adapted FOR Transportation 1

Top 4 of 4 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

Alert Stamping & Manufacturing Co., Ltd.'s patent record in context - here's where to go next.

Alert Stamping & Manufacturing Co., Ltd.'s lead technology class is F21K (Non-electric Light Sources Using LUMINESCENCE; Light Sources Using ELECTROCHEMILUMINESCENCE; Light Sources Using Charges OF Combustible MATERIAL; Light Sources Using Semiconductor Devices AS Light-gen), 16.7% of its portfolio - see every assignee active in that class. Explore F21K
Ranked #38,681 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Alert Stamping & Manufacturing Co., Ltd. against Akina, Inc, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 16.0/100 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.