Where does Electric Power Research Institute, China Southern Power Grid rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Electric Power Research Institute, China Southern Power Grid ranks #21,060 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Is Electric Power Research Institute, China Southern Power Grid's patent grant rate increasing or decreasing?

Electric Power Research Institute, China Southern Power Grid's recent grant velocity is +300% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Electric Power Research Institute, China Southern Power Grid's patents?

Electric Power Research Institute, China Southern Power Grid's patents average 10.7 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Electric Power Research Institute, China Southern Power Grid

Q: How is the Electric Power Research Institute, China Southern Power Grid 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 PatentsView assignee record - 13 granted patents across 20 technology areas, recorded in grant years 2018–2025. 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: H02J (Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Electric ranks #21,060 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 20 technology areas.

#21,060
of 49,997 US assignees by volume: Top 12%
by Innovation Score (51.3/100): 10.7
avg claims per patent: +300%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R21060 · Foreign Corporation #21,060 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #21,060/49,997
PHOTO-FINISH Eirgen Pharma
CPC-FOCUS H02J · 20 areas
INNOV-PAR 51.3/100
CLAIMS-PAR 10.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +300% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Eirgen Pharma Ltd. (±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 Electric’s 51.3 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 9.1 pts (18%) Velocity 20.0 pts (39%) Breadth 15.8 pts (31%) Claim depth 6.4 pts (12%)

Qualcomm Incorporated · highest

85
Electric Power… · this assignee

51
3D Lighting… · lowest

7

What this shows Electric's Innovation Score is 51.3/100 (top 12% 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 Electric?

Each dot is one of Electric’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). Electric’s own 10.7 claims/patent is at or below the 20.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Electric's grants concentrate

Electric Power Research Institute, China Southern Power Grid is a focused PatentsView assignee: 20 CPC subclasses with 53.8% of grants classified under H02J (Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy). Peak complete grant year is 2024 (3 grants) versus a trough of 1 in 2018. By volume, Electric sits between Eirgen Pharma Ltd. and Endo Pharmaceuticals Inc..

Electric's three-year grant acceleration

Electric Power Research Institute, China Southern Power Grid shows 4 grants in 2022–2024 against only 0 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.

Eirgen Pharma

13
Ekato Rühr-und Mi…

13
Elcam Medical Agr…

13
Eleappower

13
Biosciences

13
Elichens

13
Emrge

13
Endo Pharmaceutic…

13
Electric Power Re… ◀

13

What this shows Electric holds 13 patents at rank #21,053, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Electric

By rank, the assignees closest to #21,053 in granted patent volume.

Leaders in H02J (Circuit Arrangements OR Systems FOR Supplying OR Distribu…)

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

Electric's Innovation Score vs. every tracked assignee

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

51 Top 12% higher than 88% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Electric Power Research Institute, China Southern Power Grid patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	7.7%
2023	1	7.7%
2024	3	23.1%
2025partial year	8	61.5%

Which technologies does Electric Power Research Institute, China Southern Power Grid patent most?

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 7

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 6

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 3

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 2

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 1

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 1

H02G - Installation OF Electric Cables OR Lines, OR OF Combined Optical AND Electric Cables OR Lines 1

G06F - Electric Digital Data Processing 1

G06Q - Information AND Communication Technology [ICT] Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory PURPOSES; Systems OR Methods Specially Adapted FOR Administrative, Commercial, Financial, Managerial OR Supervisory Purposes, NOT Otherwise Provided FOR 1

Y04S - Systems Integrating Technologies Related TO Power Network Operation, Communication OR Information Technologies FOR Improving THE Electrical Power Generation, Transmission, Distribution, Management OR Usage, i.e. Smart Grids 1

H02B - Boards, Substations OR Switching Arrangements FOR THE Supply OR Distribution OF Electric Power 1

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

G01K - Measuring TEMPERATURE; Measuring Quantity OF HEAT; Thermally-sensitive Elements NOT Otherwise Provided FOR 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

H02H - Emergency Protective Circuit Arrangements 1

Top 15 of 20 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

Electric Power Research Institute, China Southern Power Grid's patent record in context - here's where to go next.

Electric Power Research Institute, China Southern Power Grid's lead technology class is H02J (Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy), 53.8% of its portfolio - see every assignee active in that class. Explore H02J
Ranked #21,060 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Electric Power Research Institute, China Southern Power Grid against Eirgen Pharma Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 51.3/100 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.