Where does Openfield rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Openfield ranks #23,138 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 Openfield hold?

Openfield holds 12 US utility patents granted between 2017 and 2024, spanning 9 technology areas.

What is Openfield's Innovation Score?

Openfield has an Innovation Score of 34.3 out of 100 (47th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Openfield focus on?

Openfield'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 12 patents, ranking #316 of 1,363 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

Is Openfield's patent grant rate increasing or decreasing?

Openfield's recent grant velocity is +0% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

What does claim depth mean for Openfield's patents?

Openfield's patents average 18.0 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 Openfield 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

Openfield

USPTO PatentsView assignee record - 12 granted patents across 9 technology areas, recorded in grant years 2017–2024. 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

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Openfield ranks #23,138 of 49,997 tracked US assignees by granted-patent volume, with 12 patents across 9 technology areas.

#23,138
of 49,997 US assignees by volume: 47th percentile
by Innovation Score (34.3/100): 18.0
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R23138 · Foreign Corporation #23,138 · 12 grants

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

GRANTS-MICRO 12 grants
MID-PACK #23,138/49,997
PHOTO-FINISH ONE Concern
CPC-NARROW E21B · 9 areas
INNOV-THIN 34.3/100
CLAIMS-RICH 18.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: ONE Concern, 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 Openfield’s 34.3 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 (26%) Velocity 4.0 pts (12%) Breadth 10.6 pts (31%) Claim depth 10.8 pts (31%)

Qualcomm Incorporated · highest

85
Openfield · this assignee

34
3D Lighting… · lowest

7

What this shows Openfield's Innovation Score is 34.3/100 (47th 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 Openfield?

Each dot is one of Openfield’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). Openfield’s own 18.0 claims/patent is ABOVE the 17.3 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Openfield's grants concentrate

Openfield is a focused PatentsView assignee: 9 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 2017 (3 grants) versus a trough of 1 in 2018. By volume, Openfield sits between ONE Concern, Inc. and Orbit Biomedical Limited.

Openfield's three-year grant acceleration

Openfield shows 3 grants in 2022–2024 against only 5 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.

ONE Concern

12
Onesteel Wire PTY

12
Ooni

12
Open Weaver

12
Opko Health

12
Opterna AM

12
Opw-engineered Sy…

12
Orbit Biomedical

12
Openfield ◀

12

What this shows Openfield holds 12 patents at rank #23,119, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Openfield

By rank, the assignees closest to #23,119 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Openfield's Innovation Score vs. every tracked assignee

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

34 47th percentile higher than 47% 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 · 2017–2024

Grants by year

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

View data table

Openfield patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	3	25.0%
2018	1	8.3%
2019	2	16.7%
2020	2	16.7%
2021	1	8.3%
2022	1	8.3%
2023	1	8.3%
2024	1	8.3%

Which technologies does Openfield patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 12

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 6

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 4

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 2

G01H - Measurement OF Mechanical Vibrations OR Ultrasonic, Sonic OR Infrasonic Waves 1

G02B - Optical Elements, Systems OR Apparatus 1

G06F - Electric Digital Data Processing 1

B06B - Methods OR Apparatus FOR Generating OR Transmitting Mechanical Vibrations OF Infrasonic, Sonic, OR Ultrasonic Frequency, ; e.g.; FOR Performing Mechanical Work IN General 1

G01P - Measuring Linear OR Angular Speed, Acceleration, Deceleration, OR SHOCK; Indicating Presence, Absence, OR Direction, OF Movement 1

Top 9 of 9 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

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

Openfield'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 #23,138 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Openfield against ONE Concern, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 34.3/100 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.