Where does Rubberatkins Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Rubberatkins Limited ranks #29,981 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 Rubberatkins Limited hold?

Rubberatkins Limited holds 9 US utility patents granted between 2016 and 2024, spanning 1 technology areas.

What is Rubberatkins Limited's Innovation Score?

Rubberatkins Limited has an Innovation Score of 28.9 out of 100 (29th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Rubberatkins Limited's patent grant rate increasing or decreasing?

Rubberatkins Limited's recent grant velocity is -20% 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 Rubberatkins Limited's patents?

Rubberatkins Limited's patents average 23.4 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 Rubberatkins 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

Rubberatkins Limited

Q: What technology areas does Rubberatkins Limited focus on?

Rubberatkins 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 9 patents, ranking #406 of 1,363 assignees active in that subclass. Grants appear in 1 CPC subclasses total.

USPTO PatentsView assignee record - 9 granted patents across 1 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: 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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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Rubberatkins ranks #29,981 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 1 technology areas.

#29,981
of 49,997 US assignees by volume: 29th percentile
by Innovation Score (28.9/100): 23.4
avg claims per patent: -20%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R29981 · Foreign Corporation #29,981 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #29,981/49,997
PHOTO-FINISH Rostra Vernatherm
CPC-NARROW E21B · 1 areas
INNOV-THIN 28.9/100
CLAIMS-DENSE 23.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -20% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Rostra Vernatherm, 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 Rubberatkins’s 28.9 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 8.0 pts (28%) Velocity 3.3 pts (11%) Breadth 3.5 pts (12%) Claim depth 14.1 pts (49%)

Qualcomm Incorporated · highest

85
Rubberatkins · this assignee

29
3D Lighting… · lowest

7

What this shows Rubberatkins's Innovation Score is 28.9/100 (29th 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 Rubberatkins?

Each dot is one of Rubberatkins’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). Rubberatkins’s own 23.4 claims/patent is ABOVE the 13.0 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Rubberatkins's grants concentrate

Rubberatkins Limited is a focused PatentsView assignee: 1 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 2018 (2 grants) versus a trough of 1 in 2016. By volume, Rubberatkins sits between Rostra Vernatherm, LLC and S-biomedic.

Rubberatkins's three-year grant acceleration

Rubberatkins Limited shows 2 grants in 2022–2024 against only 4 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.

Rostra Vernatherm

9
Rowem

9
Royal Brush Manuf…

9
Royal Precision P…

9
Rushabh Instrumen…

9
Rxante

9
S & J Design

9
S-biomedic

9
Rubberatkins ◀

9

What this shows Rubberatkins holds 9 patents at rank #29,955, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Rubberatkins

By rank, the assignees closest to #29,955 in granted patent volume.

Leaders in E21B (Earth OR Rock Drilling)

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

Rubberatkins's Innovation Score vs. every tracked assignee

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

29 29th percentile higher than 29% 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

Rubberatkins Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	11.1%
2018	2	22.2%
2019	2	22.2%
2020	1	11.1%
2021	1	11.1%
2023	1	11.1%
2024	1	11.1%

Which technologies does Rubberatkins Limited patent most?

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 9

Top 1 of 1 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

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

Rubberatkins 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), 100% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #29,981 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Rubberatkins Limited against Rostra Vernatherm, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.9/100 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.