Where does PQ Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), PQ Corporation ranks #15,543 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 PQ Corporation hold?

PQ Corporation holds 19 US utility patents granted between 2015 and 2023, spanning 15 technology areas.

What is PQ Corporation's Innovation Score?

PQ Corporation has an Innovation Score of 42.6 out of 100 (top 30% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does PQ Corporation focus on?

PQ Corporation's top technology area is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus) with 11 patents, ranking #425 of 2,755 assignees active in that subclass. Grants appear in 15 CPC subclasses total.

Is PQ Corporation's patent grant rate increasing or decreasing?

PQ Corporation's recent grant velocity is -27% 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 PQ Corporation's patents?

PQ Corporation's patents average 19.8 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 PQ Corporation 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

PQ Corporation

USPTO PatentsView assignee record - 19 granted patents across 15 technology areas, recorded in grant years 2015–2023. 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: B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, PQ ranks #15,543 of 49,997 tracked US assignees by granted-patent volume, with 19 patents across 15 technology areas.

#15,543
of 49,997 US assignees by volume: Top 30%
by Innovation Score (42.6/100): 19.8
avg claims per patent: -27%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R15543 · US Corporation #15,543 · 19 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-USCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 19 grants
MID-PACK #15,543/49,997
PHOTO-FINISH Pikolinos DISEÑO S L U
CPC-FOCUS B01J · 15 areas
INNOV-PAR 42.6/100
CLAIMS-RICH 19.8 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -27% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Pikolinos DISEÑO S.L.U. (±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 PQ’s 42.6 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 10.3 pts (24%) Velocity 6.7 pts (16%) Breadth 13.7 pts (32%) Claim depth 11.9 pts (28%)

Qualcomm Incorporated · highest

85
PQ · this assignee

43
3D Lighting… · lowest

7

What this shows PQ's Innovation Score is 42.6/100 (top 30% 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 PQ?

Each dot is one of PQ’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). PQ’s own 19.8 claims/patent is ABOVE the 13.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where PQ's grants concentrate

PQ Corporation is a focused PatentsView assignee: 15 CPC subclasses with 57.9% of grants classified under B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus). Peak complete grant year is 2016 (4 grants) versus a trough of 1 in 2017. By volume, PQ sits between Pikolinos DISEÑO S.L.U. and Premark FEG L.L.C..

PQ's three-year grant acceleration

PQ Corporation shows 5 grants in 2022–2024 against only 5 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Pikolinos DISEÑO…

19
Pluristem

19
Polatechno

19
Population BIO

19
Pqsecure

19
Preco

19
Preferred Technol…

19
Premark FEG L L C

19
PQ ◀

19

What this shows PQ holds 19 patents at rank #15,528, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near PQ

By rank, the assignees closest to #15,528 in granted patent volume.

Leaders in B01J (Chemical OR Physical Processes)

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

PQ's Innovation Score vs. every tracked assignee

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

43 Top 30% higher than 70% 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 · 2015–2023

Grants by year

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

View data table

PQ Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	10.5%
2016	4	21.1%
2017	1	5.3%
2018	2	10.5%
2019	2	10.5%
2021	3	15.8%
2022	1	5.3%
2023	4	21.1%

Which technologies does PQ Corporation patent most?

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 11

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 9

B01D - Separation 8

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 3

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 3

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 3

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 3

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 2

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 2

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 2

C07C - Acyclic OR Carbocyclic Compounds 1

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C08L - Compositions OF Macromolecular Compounds 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 1

Top 15 of 15 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

PQ Corporation's patent record in context - here's where to go next.

PQ Corporation's lead technology class is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus), 57.9% of its portfolio - see every assignee active in that class. Explore B01J
Ranked #15,543 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare PQ Corporation against Pikolinos DISEÑO S.L.U., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.6/100 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.