Where does PQ Corporation rank among US patent assignees?

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

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

Q: 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. Grants appear in 15 CPC subclasses total.

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

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, PQ ranks #15,543 of 50,000 tracked US assignees by granted-patent volume, with 19 patents across 15 technology areas.

#15,543
of 50,000 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 #15,543/50,000
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.

Qualcomm Incorporated · highest

85
PQ · this assignee

43
3D Lighting Innovati… · lowest

7

What this shows PQ Corporation stamps GRANTS-MICRO, MID-PACK, PHOTO-FINISH, CPC-FOCUS, INNOV-PAR, CLAIMS-RICH, TYPE-USCORP, VEL-DOWN, BOOK-FULL. Volume places it #15,543 of 50,000; Innovation Score 42.6/100 sits in the top 30% of the PatentsView-derived corpus. Closest grant-volume peer on this plate is Pikolinos Diseño S.l.u. (±0 grants).

Portfolio overview

PQ Corporation has been granted 19 US utility patents between 2015 and 2023, placing PQ Corporation at #15,543 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 15 distinct Cooperative Patent Classification (CPC) subclasses, averaging 19.8 claims per patent with primary concentration in B01J (CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS). As a US Corporation, PQ Corporation is one of the more focused assignees in the PatentsView dataset. By volume, PQ sits between Pikolinos Diseño S.l.u. (19 patents, rank #15,524) and Premark FEG L.l.c. (19 patents, rank #15,532) - the closest US assignees by grant volume. The composite Innovation Score of 42.6/100 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 8 grants, compared with 11 in the 2015–2019 window, a -27% 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 US Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. PQ Corporation's 19.8 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 15 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

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 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 · 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

Where it ranks

Overall rank by patents

#15,543

of 50,000 tracked assignees

Innovation Score

42.6 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

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.