Where does Downhole Products Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Downhole Products Limited ranks #16,746 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 Downhole Products Limited hold?

Downhole Products Limited holds 17 US utility patents granted between 2016 and 2025, spanning 6 technology areas.

What is Downhole Products Limited's Innovation Score?

Downhole Products Limited has an Innovation Score of 47.9 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Downhole Products Limited's patent grant rate increasing or decreasing?

Downhole Products Limited's recent grant velocity is +400% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Downhole Products Limited's patents?

Downhole Products Limited's patents average 15.5 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 Downhole Products 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

Downhole Products Limited

Q: What technology areas does Downhole Products Limited focus on?

Downhole Products 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 16 patents, ranking #226 of 1,363 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

USPTO PatentsView assignee record - 17 granted patents across 6 technology areas, recorded in grant years 2016–2025. 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, Downhole ranks #16,746 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 6 technology areas.

#16,746
of 49,997 US assignees by volume: Top 18%
by Innovation Score (47.9/100): 15.5
avg claims per patent: +400%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16746 · Foreign Corporation #16,746 · 17 grants

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

GRANTS-MICRO 17 grants
MID-PACK #16,746/49,997
PHOTO-FINISH Dlvr
CPC-NARROW E21B · 6 areas
INNOV-PAR 47.9/100
CLAIMS-RICH 15.5 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +400% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dlvr, 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.

How Downhole’s 47.9 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 10.0 pts (21%) Velocity 20.0 pts (42%) Breadth 8.7 pts (18%) Claim depth 9.3 pts (19%)

Qualcomm Incorporated · highest

85
Downhole Products · this assignee

48
3D Lighting… · lowest

7

What this shows Downhole's Innovation Score is 47.9/100 (top 18% 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 Downhole?

Each dot is one of Downhole’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). Downhole’s own 15.5 claims/patent is ABOVE the 11.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Downhole's grants concentrate

Downhole Products Limited is a focused PatentsView assignee: 6 CPC subclasses with 94.1% 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 (4 grants) versus a trough of 1 in 2016. By volume, Downhole sits between Dlvr, LLC and Dunan Sensing LLC.

Downhole's three-year grant acceleration

Downhole Products Limited shows 8 grants in 2022–2024 against only 2 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.

Dlvr

17
DMT Solutions Glo…

17
Dong-a Pencil

17
Dowa IP Creation

17
Drax

17
Drivenets

17
Dtech Precision I…

17
Dunan Sensing

17
Downhole Products ◀

17

What this shows Downhole holds 17 patents at rank #16,733, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Downhole

By rank, the assignees closest to #16,733 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Downhole's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Downhole Products Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	5.9%
2018	1	5.9%
2020	1	5.9%
2021	1	5.9%
2022	4	23.5%
2024	4	23.5%
2025partial year	5	29.4%

Which technologies does Downhole Products Limited patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 16

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 2

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

Y10T - Technical Subjects Covered BY Former US Classification 1

F16D - Couplings FOR Transmitting ROTATION; CLUTCHES; Brakes 1

B25B - Tools OR Bench Devices NOT Otherwise Provided FOR, FOR Fastening, Connecting, Disengaging OR Holding 1

Top 6 of 6 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

Downhole Products Limited's patent record in context - here's where to go next.

Downhole Products 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), 94.1% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #16,746 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Downhole Products Limited against Dlvr, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.9/100 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.