Where does Poul Chang Metal Industry Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Poul Chang Metal Industry Co., Ltd. ranks #19,035 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 Poul Chang Metal Industry Co., Ltd. hold?

Poul Chang Metal Industry Co., Ltd. holds 15 US utility patents granted between 2015 and 2023, spanning 12 technology areas.

What is Poul Chang Metal Industry Co., Ltd.'s Innovation Score?

Poul Chang Metal Industry Co., Ltd. has an Innovation Score of 30.6 out of 100 (35th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Poul Chang Metal Industry Co., Ltd.'s recent grant velocity is -64% 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 Poul Chang Metal Industry Co., Ltd.'s patents?

Poul Chang Metal Industry Co., Ltd.'s patents average 7.2 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 Poul Chang 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

Poul Chang Metal Industry Co., Ltd.

Q: What technology areas does Poul Chang Metal Industry Co., Ltd. focus on?

Poul Chang Metal Industry Co., Ltd.'s top technology area is B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding) with 6 patents, ranking #94 of 768 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 15 granted patents across 12 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: B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Poul ranks #19,035 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 12 technology areas.

#19,035
of 49,997 US assignees by volume: 35th percentile
by Innovation Score (30.6/100): 7.2
avg claims per patent: -64%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R19035 · Foreign Corporation #19,035 · 15 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 15 grants
MID-PACK #19,035/49,997
PHOTO-FINISH Phoenix Closures
CPC-FOCUS B25B · 12 areas
INNOV-THIN 30.6/100
CLAIMS-SPARSE 7.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -64% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Phoenix Closures, 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 Poul’s 30.6 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 9.6 pts (31%) Velocity 4.4 pts (14%) Breadth 12.2 pts (40%) Claim depth 4.3 pts (14%)

Qualcomm Incorporated · highest

85
Poul Chang Metal… · this assignee

31
3D Lighting… · lowest

7

What this shows Poul's Innovation Score is 30.6/100 (35th 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 Poul?

Each dot is one of Poul’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). Poul’s own 7.2 claims/patent is at or below the 16.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Poul's grants concentrate

Poul Chang Metal Industry Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 40% of grants classified under B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding). Peak complete grant year is 2015 (4 grants) versus a trough of 1 in 2019. By volume, Poul sits between Phoenix Closures, Inc. and PRS Medical Technologies, Inc..

Poul's three-year grant acceleration

Poul Chang Metal Industry 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.

Phoenix Closures

15
Piramal Imaging

15
Pneumatic Scale

15
Polytherics

15
Preciflex

15
Probi AB

15
Prometheus Biosci…

15
PRS Medical

15
Poul Chang Metal… ◀

15

What this shows Poul holds 15 patents at rank #19,006, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Poul

By rank, the assignees closest to #19,006 in granted patent volume.

Leaders in B25B (Tools OR Bench Devices)

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

Poul's Innovation Score vs. every tracked assignee

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

31 35th percentile higher than 35% 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

Poul Chang Metal Industry Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	26.7%
2016	2	13.3%
2017	2	13.3%
2018	2	13.3%
2019	1	6.7%
2020	2	13.3%
2022	1	6.7%
2023	1	6.7%

Which technologies does Poul Chang Metal Industry Co., Ltd. patent most?

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 6

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 2

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 1

B62H - Cycle STANDS; Supports OR Holders FOR Parking OR Storing CYCLES; Appliances Preventing OR Indicating Unauthorized USE OR Theft OF CYCLES; Locks Integral With CYCLES; Devices FOR Learning TO Ride Cycles 1

B60S - Servicing, Cleaning, Repairing, Supporting, Lifting, OR Manoeuvring OF Vehicles, NOT Otherwise Provided FOR 1

B25H - Workshop Equipment, e.g. FOR Marking-out WORK; Storage Means FOR Workshops 1

B25G - Handles FOR Hand Implements 1

Y10T - Technical Subjects Covered BY Former US Classification 1

B21L - Making Metal Chains 1

Y10S - Technical Subjects Covered BY Former Uspc Cross-reference ART Collections [XRACs] AND Digests 1

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 1

Top 12 of 12 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

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

Poul Chang Metal Industry Co., Ltd.'s lead technology class is B25B (Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding), 40% of its portfolio - see every assignee active in that class. Explore B25B
Ranked #19,035 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Poul Chang Metal Industry Co., Ltd. against Phoenix Closures, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 30.6/100 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.