Where does Porex Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Porex Corporation ranks #21,619 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 Porex Corporation hold?

Porex Corporation holds 13 US utility patents granted between 2015 and 2023, spanning 22 technology areas.

What is Porex Corporation's Innovation Score?

Porex Corporation has an Innovation Score of 46.1 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Porex Corporation focus on?

Porex Corporation's top technology area is B01L (Chemical OR Physical Laboratory Apparatus FOR General USE) with 7 patents, ranking #279 of 1,325 assignees active in that subclass. Grants appear in 22 CPC subclasses total.

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

Porex Corporation's recent grant velocity is -37% 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 Porex Corporation's patents?

Porex Corporation's patents average 19.2 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 Porex 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

Porex Corporation

USPTO PatentsView assignee record - 13 granted patents across 22 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: B01L (Chemical OR Physical Laboratory Apparatus FOR General USE).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Porex ranks #21,619 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 22 technology areas.

#21,619
of 49,997 US assignees by volume: Top 22%
by Innovation Score (46.1/100): 19.2
avg claims per patent: -37%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21619 · US Corporation #21,619 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #21,619/49,997
PHOTO-FINISH Placemeter
CPC-FOCUS B01L · 22 areas
INNOV-PAR 46.1/100
CLAIMS-RICH 19.2 claims/avg
TYPE-USCORP US Corporation
VEL-DOWN -37% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Placemeter Inc. (±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 Porex’s 46.1 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 9.1 pts (20%) Velocity 8.9 pts (19%) Breadth 16.6 pts (36%) Claim depth 11.5 pts (25%)

Qualcomm Incorporated · highest

85
Porex · this assignee

46
3D Lighting… · lowest

7

What this shows Porex's Innovation Score is 46.1/100 (top 22% 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 Porex?

Each dot is one of Porex’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). Porex’s own 19.2 claims/patent is ABOVE the 14.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Porex's grants concentrate

Porex Corporation is a focused PatentsView assignee: 22 CPC subclasses with 53.8% of grants classified under B01L (Chemical OR Physical Laboratory Apparatus FOR General USE). Peak complete grant year is 2023 (3 grants) versus a trough of 1 in 2021. By volume, Porex sits between Placemeter Inc. and Primos Storage Technology, LLC.

Porex's three-year grant acceleration

Porex Corporation shows 4 grants in 2022–2024 against only 3 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.

Placemeter

13
Play-i

13
Playstudios

13
Plethora

13
Post Consumer Bra…

13
Precise Biometric…

13
Previvo Genetics

13
Primos Storage Te…

13
Porex ◀

13

What this shows Porex holds 13 patents at rank #21,626, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Porex

By rank, the assignees closest to #21,626 in granted patent volume.

Leaders in B01L (Chemical OR Physical Laboratory Apparatus FOR General USE)

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

Porex's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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

Porex Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	15.4%
2016	2	15.4%
2017	2	15.4%
2019	2	15.4%
2021	1	7.7%
2022	1	7.7%
2023	3	23.1%

Which technologies does Porex Corporation patent most?

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 7

A61B - DIAGNOSIS; SURGERY; Identification 5

Y10T - Technical Subjects Covered BY Former US Classification 4

A61M - Devices FOR Introducing Media Into, OR Onto, THE Body ; Devices FOR Transducing Body Media OR FOR Taking Media From THE Body ; Devices FOR Producing OR Ending Sleep OR Stupor 4

B01D - Separation 3

H01J - Electric Discharge Tubes OR Discharge Lamps 3

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 3

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 2

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 2

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

A61J - Containers Specially Adapted FOR Medical OR Pharmaceutical PURPOSES; Devices OR Methods Specially Adapted FOR Bringing Pharmaceutical Products Into Particular Physical OR Administering FORMS; Devices FOR Administering Food OR Medicines ORALLY; Baby COMFORTERS; Devices FOR Receiving Spittle 1

C40B - Combinatorial CHEMISTRY; Libraries, e.g. Chemical Libraries 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

C08L - Compositions OF Macromolecular Compounds 1

Top 15 of 22 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

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

Porex Corporation's lead technology class is B01L (Chemical OR Physical Laboratory Apparatus FOR General USE), 53.8% of its portfolio - see every assignee active in that class. Explore B01L
Ranked #21,619 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Porex Corporation against Placemeter Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.1/100 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.