Where does Clarcor Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Clarcor Inc. ranks #20,935 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 Clarcor Inc. hold?

Clarcor Inc. holds 13 US utility patents granted between 2015 and 2020, spanning 12 technology areas.

What is Clarcor Inc.'s Innovation Score?

Clarcor Inc. has an Innovation Score of 34.5 out of 100 (top 52% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Clarcor Inc.'s patent grant rate increasing or decreasing?

Clarcor Inc.'s recent grant velocity is -82% 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 Clarcor Inc.'s patents?

Clarcor Inc.'s patents average 21.9 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 Clarcor 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

Clarcor Inc.

Q: What technology areas does Clarcor Inc. focus on?

Clarcor Inc.'s top technology area is D01D (MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS) with 10 patents. Grants appear in 12 CPC subclasses total.

USPTO PatentsView assignee record - 13 granted patents across 12 technology areas, recorded in grant years 2015–2020. 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: D01D (MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Clarcor ranks #20,935 of 50,000 tracked US assignees by granted-patent volume, with 13 patents across 12 technology areas.

#20,935
of 50,000 US assignees by volume: Top 52%
by Innovation Score (34.5/100): 21.9
avg claims per patent: -82%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20935 · US Corporation #20,935 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #20,935/50,000
PHOTO-FINISH CIBUS EUROPE B V
CPC-FOCUS D01D · 12 areas
INNOV-THIN 34.5/100
CLAIMS-DENSE 21.9 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -82% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cibus Europe B.v. (±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
Clarcor · this assignee

35
3D Lighting Innovati… · lowest

7

What this shows Clarcor's Innovation Score is 34.5/100 (top 52% 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.

Where Clarcor's grants concentrate

Clarcor Inc. is a focused PatentsView assignee: 12 CPC subclasses with 76.9% of grants classified under D01D (MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS). Peak complete grant year is 2016 (3 grants) versus a trough of 1 in 2015. By volume, Clarcor sits between Cibus Europe B.v. and Coastal Source, Llc.

Cibus Europe B V

13
Cirocomm Technolo…

13
Civco Medical Ins…

13
CLAM

13
Classys

13
Cloudcar

13
CMI Defence

13
Coastal Source

13
Clarcor ◀

13

What this shows Clarcor holds 13 patents at rank #20,910, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Clarcor

By rank, the assignees closest to #20,910 in granted patent volume.

Leaders in D01D (Mechanical Methods OR Apparatus IN THE Manufacture OF Art…)

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

Clarcor's Innovation Score vs. every tracked assignee

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

35 Top 52% higher than 48% 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 · 2015–2020

Grants by year

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

View data table

Clarcor Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	7.7%
2016	3	23.1%
2017	3	23.1%
2018	2	15.4%
2019	2	15.4%
2020	2	15.4%

Which technologies does Clarcor Inc. patent most?

D01D - MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS 10

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 8

B29D - PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 5

C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES 5

B01D - SEPARATION 3

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 2

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 2

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1

D04H - MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION 1

D01F - CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS 1

F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 1

Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS 1

Top 12 of 12 technology areas

Where it ranks

Overall rank by patents

#20,935

of 50,000 tracked assignees

Innovation Score

34.5 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.