Where does Enpro Subsea Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Enpro Subsea Limited ranks #22,529 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 Enpro Subsea Limited hold?

Enpro Subsea Limited holds 12 US utility patents granted between 2019 and 2025, spanning 3 technology areas.

What is Enpro Subsea Limited's Innovation Score?

Enpro Subsea Limited has an Innovation Score of 35.5 out of 100 (top 49% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Enpro Subsea Limited's patent grant rate increasing or decreasing?

Enpro Subsea Limited's recent grant velocity is +350% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Enpro Subsea Limited's patents?

Enpro Subsea Limited's patents average 25.8 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 Enpro Subsea Limited 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

Enpro Subsea Limited

Q: What technology areas does Enpro Subsea Limited focus on?

Enpro Subsea Limited's top technology area is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells) with 11 patents, ranking #341 of 1,363 assignees active in that subclass. Grants appear in 3 CPC subclasses total.

USPTO PatentsView assignee record - 12 granted patents across 3 technology areas, recorded in grant years 2019–2025. 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: E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Enpro ranks #22,529 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 3 technology areas.

#22,529
of 49,997 US assignees by volume: Top 49%
by Innovation Score (35.5/100): 25.8
avg claims per patent: +350%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R22529 · Foreign Corporation #22,529 · 12 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-DENSE · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 12 grants
MID-PACK #22,529/49,997
PHOTO-FINISH Endress+Hauser…
CPC-NARROW E21B · 3 areas
INNOV-THIN 35.5/100
CLAIMS-DENSE 25.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +350% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Endress+Hauser Conducta, 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 Enpro’s 35.5 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 8.9 pts (25%) Velocity 5.6 pts (16%) Breadth 6.1 pts (17%) Claim depth 15.0 pts (42%)

Qualcomm Incorporated · highest

85
Enpro Subsea · this assignee

36
3D Lighting… · lowest

7

What this shows Enpro's Innovation Score is 35.5/100 (top 49% 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 Enpro?

Each dot is one of Enpro’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). Enpro’s own 25.8 claims/patent is ABOVE the 19.1 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Enpro's grants concentrate

Enpro Subsea Limited is a focused PatentsView assignee: 3 CPC subclasses with 91.7% of grants classified under E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells). Peak complete grant year is 2022 (3 grants) versus a trough of 1 in 2023. By volume, Enpro sits between Endress+Hauser Conducta, Inc. and Escient Pharmaceuticals, Inc..

Enpro's three-year grant acceleration

Enpro Subsea Limited shows 5 grants in 2022–2024 against only 6 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.

Endress+Hauser Co…

12
Enerco Group

12
Energy United Sta…

12
Engineer ai

12
Ensemble RCM

12
Enthone

12
Epiontis

12
Escient Pharmaceu…

12
Enpro Subsea ◀

12

What this shows Enpro holds 12 patents at rank #22,538, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Enpro

By rank, the assignees closest to #22,538 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Enpro's Innovation Score vs. every tracked assignee

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

36 Top 49% higher than 51% 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 · 2019–2025

Grants by year

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

View data table

Enpro Subsea Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	16.7%
2020	2	16.7%
2021	2	16.7%
2022	3	25.0%
2023	1	8.3%
2024	1	8.3%
2025partial year	1	8.3%

Which technologies does Enpro Subsea Limited patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 11

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 2

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

Enpro Subsea Limited's patent record in context - here's where to go next.

Enpro Subsea Limited's lead technology class is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells), 91.7% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #22,529 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Enpro Subsea Limited against Endress+Hauser Conducta, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.5/100 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.