Where does Quadriga Biosciences, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Quadriga Biosciences, Inc. ranks #27,211 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 Quadriga Biosciences, Inc. hold?

Quadriga Biosciences, Inc. holds 10 US utility patents granted between 2016 and 2019, spanning 6 technology areas.

What is Quadriga Biosciences, Inc.'s Innovation Score?

Quadriga Biosciences, Inc. has an Innovation Score of 29.8 out of 100 (32nd percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Quadriga Biosciences, Inc.'s patent grant rate increasing or decreasing?

Quadriga Biosciences, Inc.'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 Quadriga Biosciences, Inc.'s patents?

Quadriga Biosciences, Inc.'s patents average 21.5 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 Quadriga Biosciences, 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.

USPTO 2015–2025 USPTO PatentsView US Corporation

Quadriga Biosciences, Inc.

Q: What technology areas does Quadriga Biosciences, Inc. focus on?

Quadriga Biosciences, Inc.'s top technology area is C07F (Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium) with 10 patents, ranking #157 of 1,317 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 10 granted patents across 6 technology areas, recorded in grant years 2016–2019. 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: C07F (Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Quadriga ranks #27,211 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 6 technology areas.

#27,211
of 49,997 US assignees by volume: 32nd percentile
by Innovation Score (29.8/100): 21.5
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R27211 · US Corporation #27,211 · 10 grants

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

GRANTS-MICRO 10 grants
MID-PACK #27,211/49,997
PHOTO-FINISH Qilu University OF…
CPC-NARROW C07F · 6 areas
INNOV-THIN 29.8/100
CLAIMS-DENSE 21.5 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Qilu University OF Technology (SHANDONG Academy OF SCIENCES) (±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 Quadriga’s 29.8 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 8.3 pts (28%) Velocity 0.0 pts (0%) Breadth 8.7 pts (29%) Claim depth 12.9 pts (43%)

Qualcomm Incorporated · highest

85
Quadriga Biosciences · this assignee

30
3D Lighting… · lowest

7

What this shows Quadriga's Innovation Score is 29.8/100 (32nd 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 Quadriga?

Each dot is one of Quadriga’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). Quadriga’s own 21.5 claims/patent is ABOVE the 13.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Quadriga's grants concentrate

Quadriga Biosciences, Inc. is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under C07F (Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium). Peak complete grant year is 2018 (4 grants) versus a trough of 2 in 2016. By volume, Quadriga sits between Qilu University OF Technology (SHANDONG Academy OF SCIENCES) and Quanticel Pharmaceuticals, Inc..

Qilu University O…

10
Qingdao Institute…

10
Qinghai Institute…

10
Qosound

10
Qualipac

10
Quantalrf

10
Quantex Patents

10
Quanticel Pharmac…

10
Quadriga Bioscien… ◀

10

What this shows Quadriga holds 10 patents at rank #27,197, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Quadriga

By rank, the assignees closest to #27,197 in granted patent volume.

Leaders in C07F (Acyclic)

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

Quadriga's Innovation Score vs. every tracked assignee

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

30 32nd percentile higher than 32% 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 · 2016–2019

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Quadriga Biosciences, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	20.0%
2017	2	20.0%
2018	4	40.0%
2019	2	20.0%

Which technologies does Quadriga Biosciences, Inc. patent most?

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 10

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 10

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 10

C07C - Acyclic OR Carbocyclic Compounds 10

C07D - Heterocyclic Compounds 6

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 3

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

Quadriga Biosciences, Inc.'s patent record in context - here's where to go next.

Quadriga Biosciences, Inc.'s lead technology class is C07F (Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium), 100% of its portfolio - see every assignee active in that class. Explore C07F
Ranked #27,211 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Quadriga Biosciences, Inc. against Qilu University OF Technology (SHANDONG Academy OF SCIENCES), an assignee filing at a similar volume. Compare portfolios
Innovation Score of 29.8/100 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.