Where does University OF Calcutta rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), University OF Calcutta ranks #13,228 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 University OF Calcutta hold?

University OF Calcutta holds 23 US utility patents granted between 2015 and 2019, spanning 29 technology areas.

What is University OF Calcutta's Innovation Score?

University OF Calcutta has an Innovation Score of 40.4 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does University OF Calcutta focus on?

University OF Calcutta's top technology area is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties) with 8 patents, ranking #1,791 of 7,863 assignees active in that subclass. Grants appear in 29 CPC subclasses total.

Is University OF Calcutta's patent grant rate increasing or decreasing?

University OF Calcutta's recent grant velocity is -100% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for University OF Calcutta's patents?

University OF Calcutta's patents average 17.4 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 University OF Calcutta 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

University OF Calcutta

USPTO PatentsView assignee record - 23 granted patents across 29 technology areas, recorded in grant years 2015–2019. 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: G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, University ranks #13,228 of 49,997 tracked US assignees by granted-patent volume, with 23 patents across 29 technology areas.

#13,228
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.4/100): 17.4
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13228 · Foreign Corporation #13,228 · 23 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 23 grants
MID-PACK #13,228/49,997
PHOTO-FINISH UCB Pharma
CPC-FOCUS G01N · 29 areas
INNOV-PAR 40.4/100
CLAIMS-RICH 17.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: UCB Pharma GMBH (±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 University’s 40.4 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 11.0 pts (27%) Velocity 0.0 pts (0%) Breadth 19.0 pts (47%) Claim depth 10.4 pts (26%)

Qualcomm Incorporated · highest

85
ADA Carbon Solutions · near

40
Heesung Catalysts · near

40
Longhorn Vaccines… · near

40
Qatar Foundation · near

40
University OF Calcutta · this assignee

40
3D Lighting… · lowest

7

What this shows University's Innovation Score is 40.4/100 (top 36% 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 University?

Each dot is one of University’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). University’s own 17.4 claims/patent is ABOVE the 16.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where University's grants concentrate

University OF Calcutta is a focused PatentsView assignee: 29 CPC subclasses with 34.8% of grants classified under G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties). Peak complete grant year is 2017 (8 grants) versus a trough of 1 in 2019. By volume, University sits between UCB Pharma GMBH and UT Brands LLC.

UCB Pharma

23
United Airlines

23
Universitetet I O…

23
University FOR At…

23
University OF Win…

23
UniversitÉ DE Hau…

23
Usui Kokusai Sang…

23
UT Brands

23
University OF Cal… ◀

23

What this shows University holds 23 patents at rank #13,221, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near University

By rank, the assignees closest to #13,221 in granted patent volume.

Leaders in G01N (Investigating OR Analysing Materials BY Determining Their…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for University, neither rank-band nor same-CPC leaders (those blocks stay above). In G01N (Investigating OR Analysing Materials BY Determining Their…), University ranks #1,791 of 7,863 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (40 here).

Longhorn Vaccines and Diagnostics, LLC 40 Heesung Catalysts Corporation 40 ADA Carbon Solutions, LLC 40 Qatar Foundation 40

University's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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 · 2015–2019

Grants by year

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

View data table

University OF Calcutta patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	26.1%
2016	6	26.1%
2017	8	34.8%
2018	2	8.7%
2019	1	4.3%

Which technologies does University OF Calcutta patent most?

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 8

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 4

G06F - Electric Digital Data Processing 3

B01D - Separation 2

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 2

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 2

C12P - Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture 2

C12Y - Enzymes 2

C05G - Mixtures OF Fertilisers Covered Individually BY Different Subclasses OF Class C05; Mixtures OF ONE OR More Fertilisers With Materials NOT Having A Specific Fertilising Activity, e.g. Pesticides, Soil-conditioners, Wetting Agents ; Fertilisers Characterised BY Their Form 2

C05D - Inorganic Fertilisers NOT Covered BY Subclasses C05b, C05C; Fertilisers Producing Carbon Dioxide 2

H10D - Inorganic Electric Semiconductor Devices 1

Top 15 of 29 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

University OF Calcutta's patent record in context - here's where to go next.

University OF Calcutta's lead technology class is G01N (Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties), 34.8% of its portfolio - see every assignee active in that class. Explore G01N
Ranked #13,228 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare University OF Calcutta against UCB Pharma GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.4/100 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.