Where does Power Roll Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Power Roll Limited ranks #21,621 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 Power Roll Limited hold?

Power Roll Limited holds 13 US utility patents granted between 2019 and 2023, spanning 12 technology areas.

What is Power Roll Limited's Innovation Score?

Power Roll Limited has an Innovation Score of 36.0 out of 100 (top 48% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Power Roll Limited focus on?

Power Roll Limited's top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 12 patents, ranking #1,089 of 5,963 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Power Roll Limited's patent grant rate increasing or decreasing?

Power Roll Limited's recent grant velocity is +1100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Power Roll Limited's patents?

Power Roll Limited's patents average 17.4 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 Power Roll 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

Power Roll Limited

USPTO PatentsView assignee record - 13 granted patents across 12 technology areas, recorded in grant years 2019–2023. 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Power ranks #21,621 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 12 technology areas.

#21,621
of 49,997 US assignees by volume: Top 48%
by Innovation Score (36.0/100): 17.4
avg claims per patent: +1100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21621 · Foreign Corporation #21,621 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #21,621/49,997
PHOTO-FINISH Plant Genetics…
CPC-FOCUS Y02E · 12 areas
INNOV-THIN 36.0/100
CLAIMS-RICH 17.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +1100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Plant Genetics International Limited (±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 Power’s 36.0 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 9.1 pts (25%) Velocity 4.2 pts (12%) Breadth 12.2 pts (34%) Claim depth 10.4 pts (29%)

Qualcomm Incorporated · highest

85
Power Roll · this assignee

36
3D Lighting… · lowest

7

What this shows Power's Innovation Score is 36.0/100 (top 48% 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 Power?

Each dot is one of Power’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). Power’s own 17.4 claims/patent is ABOVE the 12.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Power's grants concentrate

Power Roll Limited is a focused PatentsView assignee: 12 CPC subclasses with 92.3% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2020 (5 grants) versus a trough of 1 in 2019. By volume, Power sits between Plant Genetics International Limited and Princo Corp..

Power's three-year grant acceleration

Power Roll Limited shows 5 grants in 2022–2024 against only 8 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.

Plant Genetics In…

13
Plasmapp

13
Pochet DU Courval

13
Pointgrab

13
Pozen

13
PPI Pyungwha

13
Pratt & Miller En…

13
Princo

13
Power Roll ◀

13

What this shows Power holds 13 patents at rank #21,592, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Power

By rank, the assignees closest to #21,592 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Power's Innovation Score vs. every tracked assignee

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

36 Top 48% higher than 52% 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 · 2019–2023

Grants by year

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

View data table

Power Roll Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	1	7.7%
2020	5	38.5%
2021	2	15.4%
2022	1	7.7%
2023	4	30.8%

Which technologies does Power Roll Limited patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 12

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 11

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 7

H10D - Inorganic Electric Semiconductor Devices 2

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 1

H10K - Organic Electric Solid-state Devices 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 1

H10H - Inorganic Light-emitting Semiconductor Devices Having Potential Barriers 1

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 1

Top 12 of 12 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

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

Power Roll Limited's lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 92.3% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #21,621 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Power Roll Limited against Plant Genetics International Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 36.0/100 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.