PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Zhejiang Jiuzhou Pharmaceutical Co., Ltd.

USPTO PatentsView assignee record - 10 granted patents across 6 technology areas, recorded in grant years 2015–2020. 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: C07D (Heterocyclic Compounds).

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The verdict

According to USPTO PatentsView, Zhejiang ranks #27,904 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 6 technology areas.

#27,904
of 49,997 US assignees by volume
20th percentile
by Innovation Score (26.3/100)
15.6
avg claims per patent
-89%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R27904 · Foreign Corporation #27,904 · 10 grants

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

  • GRANTS-MICRO 10 grants
  • MID-PACK #27,904/49,997
  • PHOTO-FINISH Zetta Research AND…
  • CPC-NARROW C07D · 6 areas
  • INNOV-THIN 26.3/100
  • CLAIMS-RICH 15.6 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-DROP -89% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Zetta Research AND Development LLC—AQT Series (±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 26.3 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Innovation-score neighbourhood around Zhejiang

Lowest and highest poles plus nearest Innovation Score peers, not a full corpus board reprint.

score

What this shows Zhejiang's Innovation Score is 26.3/100 (20th 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.

Source USPTO PatentsView, PlainPatent Innovation Score As of 2015–2025

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 15.6 claims/patent is ABOVE the 11.1 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. 2×2 strategic matrix plotting 9 entities by Granted patents (volume) (X) and Avg claims / patent (Y), with a crosshair dividing the plot into four quadrants. Volume + depthSelective & thoroughVolume over depthLean filer 9.99.91010.1 0510152025 Granted patents (volume) Avg claims / patent Zetta Research AND Development LLC—AQT Series - 10, 19.8Zetta Research AN…Zgtl LLC - 10, 11.1ZgtlZhejiang Aerlang Technology Co., Ltd. - 10, 5.5Zhejiang Aerlang…Zhejiang Dingli Machinery Co., Ltd. - 10, 4.8Zhejiang Dingli M…Zhengzhou Research Institute OF Mechanical Engineering Co., Ltd. - 10, 10.8Zhengzhou Researc…Zhongying Changjiang International NEW Energy Investment Co., Ltd. - 10, 14.9Zhongying Changji…ZHU HAI Fuyun Lighting Industrial Co., Ltd. - 10, 13.4ZHU HAI Fuyun Lig…Zhuhai Juntian Electronic Technology Co., Ltd. - 10, 14.6Zhuhai Juntian Te…Zhejiang Jiuzhou Pharmaceutical Co., Ltd. - 10, 15.6Zhejiang Jiuzhou…
Zhejiang vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Zhejiang's grants concentrate

Zhejiang Jiuzhou Pharmaceutical Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 70% of grants classified under C07D (Heterocyclic Compounds). Peak complete grant year is 2017 (3 grants) versus a trough of 1 in 2020. By volume, Zhejiang sits between Zetta Research AND Development LLC—AQT Series and Zhuhai Juntian Electronic Technology Co., Ltd..

Who files at Zhejiang's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Zhejiang holds 10 patents at rank #27,880, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Zhejiang

By rank, the assignees closest to #27,880 in granted patent volume.

Leaders in C07D (Heterocyclic Compounds)

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)

26 20th percentile higher than 20% of 49,997 US assignees

This assignee 0 100 every tracked assignee, bucketed by value

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

0.511.522.533.5 20152016201720182020 1
USPTO utility patent grants by year · 2015–2020

Grants by year

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

View data table
Zhejiang Jiuzhou Pharmaceutical Co., Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 2 20.0%
2016 2 20.0%
2017 3 30.0%
2018 2 20.0%
2020 1 10.0%

Which technologies does Zhejiang Jiuzhou Pharmaceutical Co., Ltd. patent most?

Top 6 of 6 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 Jiuzhou Pharmaceutical Co., Ltd.'s patent record in context - here's where to go next.

  • Zhejiang Jiuzhou Pharmaceutical Co., Ltd.'s lead technology class is C07D (Heterocyclic Compounds), 70% of its portfolio - see every assignee active in that class. Explore C07D
  • Ranked #27,904 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Zhejiang Jiuzhou Pharmaceutical Co., Ltd. against Zetta Research AND Development LLC—AQT Series, an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 26.3/100 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

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.