Where does Zhuhai Wango Chemical Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhuhai Wango Chemical Co., Ltd. ranks #38,457 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 Wango Chemical Co., Ltd. hold?

Zhuhai Wango Chemical Co., Ltd. holds 7 US utility patents granted between 2019 and 2022, spanning 4 technology areas.

What is Zhuhai Wango Chemical Co., Ltd.'s Innovation Score?

Zhuhai Wango Chemical Co., Ltd. has an Innovation Score of 27.3 out of 100 (23rd 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 Zhuhai Wango Chemical Co., Ltd. focus on?

Zhuhai Wango Chemical Co., Ltd.'s top technology area is C08L (Compositions OF Macromolecular Compounds) with 7 patents, ranking #490 of 2,352 assignees active in that subclass. Grants appear in 4 CPC subclasses total.

Is Zhuhai Wango Chemical Co., Ltd.'s patent grant rate increasing or decreasing?

Zhuhai Wango Chemical Co., Ltd.'s recent grant velocity is -60% 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 Wango Chemical Co., Ltd.'s patents?

Zhuhai Wango Chemical Co., Ltd.'s patents average 19.9 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 Wango Chemical 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

Zhuhai Wango Chemical Co., Ltd.

USPTO PatentsView assignee record - 7 granted patents across 4 technology areas, recorded in grant years 2019–2022. 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: C08L (Compositions OF Macromolecular Compounds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhuhai ranks #38,457 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 4 technology areas.

#38,457
of 49,997 US assignees by volume: 23rd percentile
by Innovation Score (27.3/100): 19.9
avg claims per patent: -60%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R38457 · Foreign Corporation #38,457 · 7 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 7 grants
LOWER-Q #38,457/49,997
PHOTO-FINISH Zhuhai 4dage…
CPC-NARROW C08L · 4 areas
INNOV-THIN 27.3/100
CLAIMS-RICH 19.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -60% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zhuhai 4dage Technology Co., Ltd. (±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 Zhuhai’s 27.3 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 7.2 pts (26%) Velocity 1.1 pts (4%) Breadth 7.1 pts (26%) Claim depth 11.9 pts (44%)

Qualcomm Incorporated · highest

85
Zhuhai Wango Chemical · this assignee

27
3D Lighting… · lowest

7

What this shows Zhuhai's Innovation Score is 27.3/100 (23rd 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 Zhuhai?

Each dot is one of Zhuhai’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). Zhuhai’s own 19.9 claims/patent is ABOVE the 4.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Zhuhai's grants concentrate

Zhuhai Wango Chemical Co., Ltd. is a focused PatentsView assignee: 4 CPC subclasses with 100% of grants classified under C08L (Compositions OF Macromolecular Compounds). Peak complete grant year is 2019 (5 grants) versus a trough of 1 in 2020. By volume, Zhuhai sits between Zhuhai 4dage Technology Co., Ltd. and Zipholdings, LLC.

Zhuhai's three-year grant acceleration

Zhuhai Wango Chemical Co., Ltd. shows 1 grants in 2022–2024 against only 6 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.

Zhuhai 4dage Tech…

7
Zhuhai Jieli Tech…

7
Zhuhai Quin Techn…

7
Zhuhai Sharp-grou…

7
Ziclacities S L

7
Ziip

7
Zipair

7
Zipholdings

7
Zhuhai Wango Chem… ◀

7

What this shows Zhuhai holds 7 patents at rank #38,410, 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 #38,410 in granted patent volume.

Leaders in C08L (Compositions OF Macromolecular Compounds)

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

Zhuhai's Innovation Score vs. every tracked assignee

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

27 23rd percentile higher than 23% 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 · 2019–2022

Grants by year

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

View data table

Zhuhai Wango Chemical Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	5	71.4%
2020	1	14.3%
2022	1	14.3%

Which technologies does Zhuhai Wango Chemical Co., Ltd. patent most?

C08L - Compositions OF Macromolecular Compounds 7

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 7

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 5

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 2

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

Zhuhai Wango Chemical Co., Ltd.'s patent record in context - here's where to go next.

Zhuhai Wango Chemical Co., Ltd.'s lead technology class is C08L (Compositions OF Macromolecular Compounds), 100% of its portfolio - see every assignee active in that class. Explore C08L
Ranked #38,457 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhuhai Wango Chemical Co., Ltd. against Zhuhai 4dage Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 27.3/100 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.