Where does Ensign Drilling Inc rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ensign Drilling Inc ranks #40,047 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 Ensign Drilling Inc hold?

Ensign Drilling Inc holds 6 US utility patents granted between 2017 and 2023, spanning 2 technology areas.

What is Ensign Drilling Inc's Innovation Score?

Ensign Drilling Inc has an Innovation Score of 24.6 out of 100 (15th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Ensign Drilling Inc's patent grant rate increasing or decreasing?

Ensign Drilling Inc's recent grant velocity is -80% 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 Ensign Drilling Inc's patents?

Ensign Drilling Inc's patents average 17.8 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 Ensign Drilling 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 Foreign Corporation

Ensign Drilling Inc

Q: What technology areas does Ensign Drilling Inc focus on?

Ensign Drilling Inc'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 6 patents. Grants appear in 2 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 2 technology areas, recorded in grant years 2017–2023. 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: 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, Ensign ranks #40,047 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 2 technology areas.

#40,047
of 49,997 US assignees by volume: 15th percentile
by Innovation Score (24.6/100): 17.8
avg claims per patent: -80%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R40047 · Foreign Corporation #40,047 · 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 #40,047/49,997
PHOTO-FINISH Enginuity Woldwide
CPC-NARROW E21B · 2 areas
INNOV-THIN 24.6/100
CLAIMS-RICH 17.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -80% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Enginuity Woldwide, LLC (±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
Ensign Drilling · this assignee

25
3D Lighting… · lowest

7

What this shows Ensign's Innovation Score is 24.6/100 (15th 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.

Where Ensign's grants concentrate

Ensign Drilling Inc is a focused PatentsView assignee: 2 CPC subclasses with 100% 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 2019 (3 grants) versus a trough of 1 in 2017. By volume, Ensign sits between Enginuity Woldwide, LLC and Enviro Tech Chemical Services, Inc..

Ensign's three-year grant acceleration

Ensign Drilling Inc shows 1 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.

Enginuity Woldwide

6
Enkotec A/S

6
Enmotus

6
Ensco Services

6
Enteroptyx

6
Enterprises Inter…

6
Entrada Therapeut…

6
Enviro Tech Chemi…

6
Ensign Drilling ◀

6

What this shows Ensign holds 6 patents at rank #40,088, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ensign

By rank, the assignees closest to #40,088 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Ensign's Innovation Score vs. every tracked assignee

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

25 15th percentile higher than 15% 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 · 2017–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Ensign Drilling Inc patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	16.7%
2018	1	16.7%
2019	3	50.0%
2023	1	16.7%

Which technologies does Ensign Drilling Inc patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 6

F15B - Systems Acting BY Means OF Fluids IN GENERAL; Fluid-pressure Actuators, e.g. SERVOMOTORS; Details OF Fluid-pressure Systems, NOT Otherwise Provided FOR 2

Top 2 of 2 technology areas

Where it ranks

Overall rank by patents

#40,047

of 49,997 tracked assignees

Innovation Score

24.6 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Ensign Drilling Inc's patent record in context - here's where to go next.

Ensign Drilling Inc'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), 100% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #40,047 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ensign Drilling Inc against Enginuity Woldwide, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 24.6/100 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.