USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited

Q: Where does Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited ranks #44,243 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: How is the Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited 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 PatentsView assignee record - 6 granted patents across 9 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: C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Zhonghao ranks #44,243 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 9 technology areas.

#44,243
of 49,997 US assignees by volume: 19th percentile
by Innovation Score (25.9/100): 14.3
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R44243 · Foreign Corporation #44,243 · 6 grants

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

GRANTS-MICRO 6 grants
LOWER-Q #44,243/49,997
PHOTO-FINISH Zhejiang Medicine
CPC-NARROW C08F · 9 areas
INNOV-THIN 25.9/100
CLAIMS-RICH 14.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zhejiang Medicine 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 Zhonghao’s 25.9 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 (26%) Velocity 0.0 pts (0%) Breadth 10.6 pts (41%) Claim depth 8.6 pts (33%)

Qualcomm Incorporated · highest

85
Brownmed · near

26
Zhonghao Chenguang… · this assignee

26
Carebay Europe · near

26
Harbor Innovations · near

26
Olivia Garden… · near

26
3D Lighting… · lowest

7

What this shows Zhonghao's Innovation Score is 25.9/100 (19th 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 Zhonghao?

Each dot is one of Zhonghao’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). Zhonghao’s own 14.3 claims/patent is ABOVE the 2.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Zhonghao's grants concentrate

Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited is a focused PatentsView assignee: 9 CPC subclasses with 50% of grants classified under C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds). Peak complete grant year is 2017 (3 grants) versus a trough of 1 in 2016. By volume, Zhonghao sits between Zhejiang Medicine Co., Ltd. and Zhuhai Sinco Intelligent Technology Co., Ltd..

Zhejiang Medicine

6
Zhejiang Sanyou V…

6
Zhejiang Shengli…

6
Zhejiang Zuojian…

6
Zhongke Jingyuan…

6
Zhongke Jingyuan…

6
Zhongshan Forever…

6
Zhuhai Sinco Inte…

6
Zhonghao Chenguan… ◀

6

What this shows Zhonghao holds 6 patents at rank #44,225, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Zhonghao

By rank, the assignees closest to #44,225 in granted patent volume.

Leaders in C08F (Macromolecular Compounds Obtained BY Reactions Only Invol…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Zhonghao, neither rank-band nor same-CPC leaders (those blocks stay above). In C08F (Macromolecular Compounds Obtained BY Reactions Only Invol…), Zhonghao ranks #526 of 1,231 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (26 here).

Brownmed, Inc. 26 Harbor Innovations, LLC 26 Olivia Garden International Inc. 26 Carebay Europe Ltd 26

Zhonghao's Innovation Score vs. every tracked assignee

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

26 19th percentile higher than 19% 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

Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	33.3%
2016	1	16.7%
2017	3	50.0%

Which technologies does Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited patent most?

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 3

B01D - Separation 1

C07C - Acyclic OR Carbocyclic Compounds 1

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

C08L - Compositions OF Macromolecular Compounds 1

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 1

C07K - Peptides 1

A01K - Animal HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; Rearing OR Breeding Animals, NOT Otherwise Provided FOR; NEW Breeds OF Animals 1

Top 9 of 9 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

Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited's patent record in context - here's where to go next.

Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited's lead technology class is C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds), 50% of its portfolio - see every assignee active in that class. Explore C08F
Ranked #44,243 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Zhonghao Chenguang Research Institute of Chemiccal Industry Company Limited against Zhejiang Medicine Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 25.9/100 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.