USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Cathay Biotech Inc.

USPTO PatentsView assignee record - 40 granted patents across 14 technology areas, recorded in grant years 2019–2025. 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: C12P (FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE).

Compiled by PlainPatent, US Patent Intelligence Editorial Process · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.5

Avg claims per patent

+1033%

5-year grant velocity

The verdict

According to USPTO PatentsView, Cathay ranks #7,994 of 50,000 tracked US assignees by granted-patent volume, with 40 patents across 14 technology areas.

#7,994
of 50,000 US assignees by volume: Top 37%
by Innovation Score (39.9/100): 14.5
avg claims per patent: +1033%
grant velocity, last 5 yrs

Portfolio overview

Cathay Biotech Inc. has been granted 40 US utility patents between 2019 and 2025, placing Cathay Biotech Inc. at #7,994 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 14 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.5 claims per patent with primary concentration in C12P (FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE). As a Foreign Corporation, Cathay Biotech Inc. is one of the more focused assignees in the PatentsView dataset. By volume, Cathay sits between China Iwncomm Co., Ltd. (40 patents, rank #7,992) and Cephalon Llc (40 patents, rank #8,000) - the closest US assignees by grant volume. The composite Innovation Score of 39.9/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 34 grants, compared with 3 in the 2015–2019 window, a +1033% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Cathay Biotech Inc.'s 14.5 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 14 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

China Iwncomm

40
Cummins Intellect…

40
Cambridge Interna…

40
Camfil AB

40
Cboe Exchange

40
Center of Human-c…

40
Centre of Excelle…

40
Cephalon

40
Cathay Biotech ◀

40

What this shows Cathay holds 40 patents at rank #7,996, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Cathay

By rank, the assignees closest to #7,996 in granted patent volume.

Leaders in C12P (Fermentation OR Enzyme-using Processes TO Synthesise A De…)

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

Cathay's Innovation Score vs. every tracked assignee

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

40 Top 37% higher than 63% of 50,000 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 · 2019–2025

Grants by year

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

View data table

Cathay Biotech Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	3	7.5%
2020	8	20.0%
2021	10	25.0%
2022	8	20.0%
2023	4	10.0%
2024	4	10.0%
2025partial year	3	7.5%

Which technologies does Cathay Biotech Inc. patent most?

C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 31

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 23

C12Y - ENZYMES 20

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 16

B01D - SEPARATION 9

C07K - PEPTIDES 7

C12R - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS 6

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 3

C07B - GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR 2

D06P - DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM 1

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 1

D02G - CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS 1

D10B - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES 1

D01D - MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS 1

Top 14 of 14 technology areas

Grant record at a glance

Portfolio Volume 40 grants

CPC subclasses 14

Avg. claims / grant 14.5

Velocity +1033%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#7,994

of 50,000 tracked assignees

Innovation Score

39.9 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Cathay Biotech Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Cathay Biotech Inc. ranks #7,994 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Cathay Biotech Inc. hold?

Cathay Biotech Inc. holds 40 US utility patents granted between 2019 and 2025, spanning 14 technology areas.

What is Cathay Biotech Inc.'s Innovation Score?

Cathay Biotech Inc. has an Innovation Score of 39.9 out of 100 (top 37% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Cathay Biotech Inc. focus on?

Cathay Biotech Inc.'s top technology area is C12P (FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE) with 31 patents. Grants appear in 14 CPC subclasses total.

Is Cathay Biotech Inc.'s patent grant rate increasing or decreasing?

Cathay Biotech Inc.'s recent grant velocity is +1033% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Cathay Biotech Inc.'s patents?

Cathay Biotech Inc.'s patents average 14.5 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 Cathay Biotech Inc. 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.

How to use this portfolio

Cathay's 40 grants land it in the top 37% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Cathay ranks #7,994 of 50,000. Top 50 holders
Most of this portfolio concentrates in C12P - see who else leads that technology area. C12P leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.