Where does Zhuhai Shichang Metals Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhuhai Shichang Metals Ltd. ranks #4,802 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 Zhuhai Shichang Metals Ltd. hold?

Zhuhai Shichang Metals Ltd. holds 73 US utility patents granted between 2015 and 2024, spanning 5 technology areas.

What is Zhuhai Shichang Metals Ltd.'s Innovation Score?

Zhuhai Shichang Metals Ltd. has an Innovation Score of 27.5 out of 100 (24th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Zhuhai Shichang Metals Ltd.'s patent grant rate increasing or decreasing?

Zhuhai Shichang Metals Ltd.'s recent grant velocity is -74% 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 Zhuhai Shichang Metals Ltd.'s patents?

Zhuhai Shichang Metals Ltd.'s patents average 5.1 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 Zhuhai Shichang Metals 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

Zhuhai Shichang Metals Ltd.

Q: What technology areas does Zhuhai Shichang Metals Ltd. focus on?

Zhuhai Shichang Metals Ltd.'s top technology area is A47B (TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture) with 15 patents. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 73 granted patents across 5 technology areas, recorded in grant years 2015–2024. 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: A47B (TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhuhai ranks #4,802 of 49,997 tracked US assignees by granted-patent volume, with 73 patents across 5 technology areas.

#4,802
of 49,997 US assignees by volume: 24th percentile
by Innovation Score (27.5/100): 5.1
avg claims per patent: -74%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R4802 · Foreign Corporation #4,802 · 73 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 73 grants
TOP-DECILE #4,802/49,997
PHOTO-FINISH Traeger Pellet Grills
CPC-NARROW A47B · 5 areas
INNOV-THIN 27.5/100
CLAIMS-SPARSE 5.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -74% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Traeger Pellet Grills, LLC (±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.

Qualcomm Incorporated · highest

85
Adaerata Partnership · near

28
ModiFace · near

28
Zhuhai Shichang Metals · this assignee

28
2724889 Ontario · near

28
Pulmocide · near

28
3D Lighting… · lowest

7

What this shows Zhuhai's Innovation Score is 27.5/100 (24th 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.

Where Zhuhai's grants concentrate

Zhuhai Shichang Metals Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 20.5% of grants classified under A47B (TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture). Peak complete grant year is 2017 (15 grants) versus a trough of 1 in 2024. By volume, Zhuhai sits between Traeger Pellet Grills, LLC and Blue River Technology Inc..

Zhuhai's three-year grant acceleration

From 2019–2021 to 2022–2024, Zhuhai Shichang Metals Ltd. moved from 20 to 5 grants (0.25x the prior three-year total, a multiple, not a CAGR). See the growth leaderboard.

Traeger Pellet Gr…

73
Vast Data

73
Venus by Maria Ta…

73
Zhejiang Taotao V…

73
Zhuhai Shichang M… ◀

73
Affymetrix

72
ALI Group S R L —…

72
Aukey Technology

72
Blue River Techno…

72

What this shows Zhuhai holds 73 patents at rank #4,802, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhuhai

By rank, the assignees closest to #4,802 in granted patent volume.

Leaders in A47B (Tables)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zhuhai, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (28 here).

ModiFace Inc. 28 Adaerata, Limited Partnership 28 2724889 Ontario Inc. 28 Pulmocide Limited 28

Similar claim depth

Nearest assignees by average claims per patent (5.1 here).

Yachiyo Industry Co., Ltd. 5.1 avg National Presto Industries, Inc. 5.1 avg iNtRON Biotechnology, Inc. 5.1 avg Artemide S.P.A. 5.1 avg

Zhuhai's Innovation Score vs. every tracked assignee

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

28 24th percentile higher than 24% 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 · 2015–2024

Grants by year

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

View data table

Zhuhai Shichang Metals Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	6.8%
2016	14	19.2%
2017	15	20.5%
2018	14	19.2%
2019	10	13.7%
2020	3	4.1%
2021	7	9.6%
2023	4	5.5%
2024	1	1.4%

Which technologies does Zhuhai Shichang Metals Ltd. patent most?

A47B - TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture 15

A47C - CHAIRS; SOFAS; Beds 8

B62B - Hand-propelled Vehicles, e.g. Hand Carts OR PERAMBULATORS; Sledges 4

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 1

A63B - Apparatus FOR Physical Training, Gymnastics, Swimming, Climbing, OR FENCING; Ball GAMES; Training Equipment 1

Top 5 of 5 technology areas

Where it ranks

Overall rank by patents

#4,802

of 49,997 tracked assignees

Innovation Score

27.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Zhuhai Shichang Metals Ltd.'s patent record in context - here's where to go next.

Zhuhai Shichang Metals Ltd.'s lead technology class is A47B (TABLES; DESKS; Office FURNITURE; CABINETS; DRAWERS; General Details OF Furniture), 20.5% of its portfolio - see every assignee active in that class. Explore A47B
Ranked #4,802 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhuhai Shichang Metals Ltd. against Traeger Pellet Grills, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.5/100 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.