PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chang Gung Biotechnology Corp.

USPTO PatentsView assignee record - 9 granted patents across 3 technology areas, recorded in grant years 2017–2018. 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: A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations).

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The verdict

According to USPTO PatentsView, Chang ranks #28,383 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 3 technology areas.

#28,383
of 49,997 US assignees by volume
5th percentile
by Innovation Score (18.9/100)
8.0
avg claims per patent
-100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R28383 · Foreign Corporation #28,383 · 9 grants

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

  • GRANTS-MICRO 9 grants
  • MID-PACK #28,383/49,997
  • PHOTO-FINISH Centre Scientifique…
  • CPC-NARROW A61P · 3 areas
  • INNOV-LOW 18.9/100
  • CLAIMS-PAR 8.0 claims/avg
  • TYPE-FRNCORP Foreign Corp
  • VEL-DROP -100% vel
  • BOOK-FULL 10/10 fields

Nearest grant-volume peer: Centre Scientifique ET Technique DU BÂTIMENT (CSTB) (±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.

Innovation-score neighbourhood around Chang

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

score

What this shows Chang's Innovation Score is 18.9/100 (5th 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

Where Chang's grants concentrate

Chang Gung Biotechnology Corp. is a focused PatentsView assignee: 3 CPC subclasses with 100% of grants classified under A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations). Peak complete grant year is 2017 (6 grants) versus a trough of 3 in 2018. By volume, Chang sits between Centre Scientifique ET Technique DU BÂTIMENT (CSTB) and Channel Well Technology Co., Ltd..

Who files at Chang's volume?

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

patents

What this shows Chang holds 9 patents at rank #28,349, 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 Chang

By rank, the assignees closest to #28,349 in granted patent volume.

Leaders in A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…)

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

Chang's Innovation Score vs. every tracked assignee

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

19 5th percentile higher than 5% 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

234567 20172018 3
USPTO utility patent grants by year · 2017–2018

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table
Chang Gung Biotechnology Corp. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2017 6 66.7%
2018 3 33.3%

Which technologies does Chang Gung Biotechnology Corp. patent most?

Top 3 of 3 technology areas

Where it ranks

Overall rank by patents

#28,383

of 49,997 tracked assignees

Innovation Score

18.9 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

Chang Gung Biotechnology Corp.'s patent record in context - here's where to go next.

  • Chang Gung Biotechnology Corp.'s lead technology class is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations), 100% of its portfolio - see every assignee active in that class. Explore A61P
  • Ranked #28,383 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
  • Compare Chang Gung Biotechnology Corp. against Centre Scientifique ET Technique DU BÂTIMENT (CSTB), an assignee filing at a similar volume. Compare portfolios
  • Innovation Score of 18.9/100 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

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.