Where does Dunlop Oil & Marine Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dunlop Oil & Marine Ltd. ranks #35,076 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 Dunlop Oil & Marine Ltd. hold?

Dunlop Oil & Marine Ltd. holds 7 US utility patents granted between 2016 and 2024, spanning 16 technology areas.

What is Dunlop Oil & Marine Ltd.'s Innovation Score?

Dunlop Oil & Marine Ltd. has an Innovation Score of 49.5 out of 100 (top 14% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Dunlop Oil & Marine Ltd.'s patent grant rate increasing or decreasing?

Dunlop Oil & Marine Ltd.'s recent grant velocity is +33% 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 Dunlop Oil & Marine Ltd.'s patents?

Dunlop Oil & Marine Ltd.'s patents average 13.7 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 Dunlop Oil & Marine Ltd. 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

Dunlop Oil & Marine Ltd.

Q: What technology areas does Dunlop Oil & Marine Ltd. focus on?

Dunlop Oil & Marine Ltd.'s top technology area is F16L (PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General) with 6 patents, ranking #355 of 1,907 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

USPTO PatentsView assignee record - 7 granted patents across 16 technology areas, recorded in grant years 2016–2024. 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: F16L (PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Dunlop ranks #35,076 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 16 technology areas.

#35,076
of 49,997 US assignees by volume: Top 14%
by Innovation Score (49.5/100): 13.7
avg claims per patent: +33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35076 · Foreign Corporation #35,076 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #35,076/49,997
PHOTO-FINISH Dremio
CPC-FOCUS F16L · 16 areas
INNOV-PAR 49.5/100
CLAIMS-RICH 13.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dremio Corporation (±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 Dunlop’s 49.5 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 7.2 pts (15%) Velocity 20.0 pts (40%) Breadth 14.1 pts (28%) Claim depth 8.2 pts (17%)

Qualcomm Incorporated · highest

85
Dunlop Oil & Marine · this assignee

50
3D Lighting… · lowest

7

What this shows Dunlop's Innovation Score is 49.5/100 (top 14% 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 Dunlop?

Each dot is one of Dunlop’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). Dunlop’s own 13.7 claims/patent is at or below the 15.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dunlop's grants concentrate

Dunlop Oil & Marine Ltd. is a focused PatentsView assignee: 16 CPC subclasses with 85.7% of grants classified under F16L (PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2018. By volume, Dunlop sits between Dremio Corporation and Dyconex AG.

Dunlop's three-year grant acceleration

Dunlop Oil & Marine Ltd. shows 3 grants in 2022–2024 against only 1 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.

Dremio

7
Drug Careers

7
Dryfhout Enterpri…

7
Duck Yang Industry

7
Durafuse Frames

7
Duvas

7
Dwellwell Analyti…

7
Dyconex

7
Dunlop Oil & Mari… ◀

7

What this shows Dunlop holds 7 patents at rank #35,078, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dunlop

By rank, the assignees closest to #35,078 in granted patent volume.

Leaders in F16L (Pipes)

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

Dunlop's Innovation Score vs. every tracked assignee

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

50 Top 14% higher than 86% 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 · 2016–2024

Grants by year

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

View data table

Dunlop Oil & Marine Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	28.6%
2018	1	14.3%
2021	1	14.3%
2022	1	14.3%
2023	1	14.3%
2024	1	14.3%

Which technologies does Dunlop Oil & Marine Ltd. patent most?

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 6

B63B - Ships OR Other Waterborne VESSELS; Equipment FOR Shipping 4

B67D - Dispensing, Delivering OR Transferring Liquids, NOT Otherwise Provided FOR 3

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 2

G05D - Systems FOR Controlling OR Regulating Non-electric Variables 2

H04B - Transmission 2

B29D - Producing Particular Articles From Plastics OR From Substances IN A Plastic State 1

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 1

G01C - Measuring Distances, Levels OR BEARINGS; SURVEYING; NAVIGATION; Gyroscopic INSTRUMENTS; Photogrammetry OR Videogrammetry 1

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 1

D02G - Crimping OR Curling Fibres, Filaments, Threads, OR YARNS; Yarns OR Threads 1

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

Y10T - Technical Subjects Covered BY Former US Classification 1

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

Top 15 of 16 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

Dunlop Oil & Marine Ltd.'s patent record in context - here's where to go next.

Dunlop Oil & Marine Ltd.'s lead technology class is F16L (PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General), 85.7% of its portfolio - see every assignee active in that class. Explore F16L
Ranked #35,076 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dunlop Oil & Marine Ltd. against Dremio Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.5/100 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.