Where does Zhejiang Hengyi Petrochemical Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhejiang Hengyi Petrochemical Co., Ltd. ranks #22,077 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 Zhejiang Hengyi Petrochemical Co., Ltd. hold?

Zhejiang Hengyi Petrochemical Co., Ltd. holds 13 US utility patents granted between 2024 and 2025, spanning 14 technology areas.

What is Zhejiang Hengyi Petrochemical Co., Ltd.'s Innovation Score?

Zhejiang Hengyi Petrochemical Co., Ltd. has an Innovation Score of 52.7 out of 100 (top 10% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Zhejiang Hengyi Petrochemical Co., Ltd. focus on?

Zhejiang Hengyi Petrochemical Co., Ltd.'s top technology area is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods) with 9 patents, ranking #807 of 4,985 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Is Zhejiang Hengyi Petrochemical Co., Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Zhejiang Hengyi Petrochemical Co., Ltd..

What does claim depth mean for Zhejiang Hengyi Petrochemical Co., Ltd.'s patents?

Zhejiang Hengyi Petrochemical Co., Ltd.'s patents average 17.3 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 Zhejiang Hengyi Petrochemical 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

Zhejiang Hengyi Petrochemical Co., Ltd.

USPTO PatentsView assignee record - 13 granted patents across 14 technology areas, recorded in grant years 2024–2025. 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: Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhejiang ranks #22,077 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 14 technology areas.

#22,077
of 49,997 US assignees by volume: Top 10%
by Innovation Score (52.7/100): 17.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R22077 · Foreign Corporation #22,077 · 13 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 13 grants
MID-PACK #22,077/49,997
PHOTO-FINISH Zaxcom
CPC-FOCUS Y02P · 14 areas
INNOV-PAR 52.7/100
CLAIMS-RICH 17.3 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2024–2025 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Zaxcom, 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 Zhejiang’s 52.7 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 9.1 pts (17%) Velocity 20.0 pts (38%) Breadth 13.2 pts (25%) Claim depth 10.4 pts (20%)

Qualcomm Incorporated · highest

85
Zhejiang Hengyi… · this assignee

53
3D Lighting… · lowest

7

What this shows Zhejiang's Innovation Score is 52.7/100 (top 10% 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 Zhejiang?

Each dot is one of Zhejiang’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). Zhejiang’s own 17.3 claims/patent is ABOVE the 15.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Zhejiang's grants concentrate

Zhejiang Hengyi Petrochemical Co., Ltd. is a focused PatentsView assignee: 14 CPC subclasses with 69.2% of grants classified under Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods). By volume, Zhejiang sits between Zaxcom, Inc. and Zhuhai Hengqin Super Technology Ltd..

Zhejiang's three-year grant acceleration

Zhejiang Hengyi Petrochemical Co., Ltd. shows 7 grants in 2022–2024 against only 0 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.

Zaxcom

13
Zero Motorcycles

13
Zhangyue Technolo…

13
Zhejiang FLY CUP

13
Zhejiang Quhua Fl…

13
Zhejiang Sanhua C…

13
Zhejiang Sanhua

13
Zhuhai Hengqin Su…

13
Zhejiang Hengyi P… ◀

13

What this shows Zhejiang holds 13 patents at rank #22,070, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhejiang

By rank, the assignees closest to #22,070 in granted patent volume.

Leaders in Y02P (Climate Change Mitigation Technologies IN THE Production…)

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

Zhejiang's Innovation Score vs. every tracked assignee

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

53 Top 10% higher than 90% 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 · 2024–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2024–2019 baseline. Full figures in the table below.

View data table

Zhejiang Hengyi Petrochemical Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2024	7	53.8%
2025partial year	6	46.2%

Which technologies does Zhejiang Hengyi Petrochemical Co., Ltd. patent most?

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 9

G06T - Image Data Processing OR Generation, IN General 8

G06V - Image OR Video Recognition OR Understanding 7

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 4

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 3

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 2

G06F - Electric Digital Data Processing 2

D01H - Spinning OR Twisting 2

D01D - Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons 2

G10L - Speech Analysis Techniques OR Speech SYNTHESIS; Speech RECOGNITION; Speech OR Voice Processing TECHNIQUES; Speech OR Audio Coding OR Decoding 1

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 1

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 1

G06N - Computing Arrangements Based ON Specific Computational Models 1

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

Top 14 of 14 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

Zhejiang Hengyi Petrochemical Co., Ltd.'s patent record in context - here's where to go next.

Zhejiang Hengyi Petrochemical Co., Ltd.'s lead technology class is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods), 69.2% of its portfolio - see every assignee active in that class. Explore Y02P
Ranked #22,077 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhejiang Hengyi Petrochemical Co., Ltd. against Zaxcom, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.7/100 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.