Where does ELK Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), ELK Corporation ranks #39,997 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 ELK Corporation hold?

ELK Corporation holds 6 US utility patents granted between 2015 and 2019, spanning 3 technology areas.

What is ELK Corporation's Innovation Score?

ELK Corporation has an Innovation Score of 20.6 out of 100 (7th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

ELK Corporation'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 ELK Corporation's patents?

ELK Corporation's patents average 13.0 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 ELK 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 Foreign Corporation

ELK Corporation

Q: What technology areas does ELK Corporation focus on?

ELK Corporation's top technology area is 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) with 4 patents, ranking #808 of 2,589 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 3 technology areas, recorded in grant years 2015–2019. 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: 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;).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, ELK ranks #39,997 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 3 technology areas.

#39,997
of 49,997 US assignees by volume: 7th percentile
by Innovation Score (20.6/100): 13.0
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R39997 · Foreign Corporation #39,997 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #39,997/49,997
PHOTO-FINISH Electro-global…
CPC-NARROW A61L · 3 areas
INNOV-THIN 20.6/100
CLAIMS-RICH 13.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Electro-global Energy Solutions Ltd. (±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 ELK’s 20.6 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 6.7 pts (33%) Velocity 0.0 pts (0%) Breadth 6.1 pts (30%) Claim depth 7.8 pts (38%)

Qualcomm Incorporated · highest

85
ELK · this assignee

21
3D Lighting… · lowest

7

What this shows ELK's Innovation Score is 20.6/100 (7th 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 ELK?

Each dot is one of ELK’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). ELK’s own 13.0 claims/patent is ABOVE the 12.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where ELK's grants concentrate

ELK Corporation is a focused PatentsView assignee: 3 CPC subclasses with 66.7% of grants classified under 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;). By volume, ELK sits between Electro-global Energy Solutions Ltd. and Emanate Wireless, Inc..

Electro-global En…

6
Electrovaya

6
Elfi-tech

6
Elifeconnection

6
Elkem Silicones S…

6
Elvy

6
EM Coretech

6
Emanate Wireless

6
ELK ◀

6

What this shows ELK holds 6 patents at rank #39,965, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near ELK

By rank, the assignees closest to #39,965 in granted patent volume.

Leaders in A61L (Methods OR Apparatus FOR Sterilising Materials OR Objects…)

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

ELK's Innovation Score vs. every tracked assignee

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

21 7th percentile higher than 7% 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 · 2015–2019

Grants by year

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

View data table

ELK Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	33.3%
2016	2	33.3%
2019	2	33.3%

Which technologies does ELK Corporation patent most?

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 4

G06F - Electric Digital Data Processing 2

B01L - Chemical OR Physical Laboratory Apparatus FOR General USE 1

Top 3 of 3 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

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

ELK Corporation's lead technology class is 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;), 66.7% of its portfolio - see every assignee active in that class. Explore A61L
Ranked #39,997 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare ELK Corporation against Electro-global Energy Solutions Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 20.6/100 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.