Where does Central Research Institute OF Electric Power Industry rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Central Research Institute OF Electric Power Industry ranks #14,523 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Is Central Research Institute OF Electric Power Industry's patent grant rate increasing or decreasing?

Central Research Institute OF Electric Power Industry's recent grant velocity is -54% 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 Central Research Institute OF Electric Power Industry's patents?

Central Research Institute OF Electric Power Industry's patents average 10.9 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

Central Research Institute OF Electric Power Industry

Q: How many patents does Central Research Institute OF Electric Power Industry hold?

Central Research Institute OF Electric Power Industry holds 20 US utility patents granted between 2015 and 2025, spanning 25 technology areas.

Q: What is Central Research Institute OF Electric Power Industry's Innovation Score?

Central Research Institute OF Electric Power Industry has an Innovation Score of 38.7 out of 100 (top 40% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Q: What technology areas does Central Research Institute OF Electric Power Industry focus on?

Central Research Institute OF Electric Power Industry's top technology area is C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI) with 8 patents, ranking #68 of 414 assignees active in that subclass. Grants appear in 25 CPC subclasses total.

Q: How is the Central Research Institute OF Electric Power Industry 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 - 20 granted patents across 25 technology areas, recorded in grant years 2015–2025. 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: C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrys).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Central ranks #14,523 of 49,997 tracked US assignees by granted-patent volume, with 20 patents across 25 technology areas.

#14,523
of 49,997 US assignees by volume: Top 40%
by Innovation Score (38.7/100): 10.9
avg claims per patent: -54%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R14523 · Foreign Corporation #14,523 · 20 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 20 grants
MID-PACK #14,523/49,997
PHOTO-FINISH California Innovations
CPC-FOCUS C30B · 25 areas
INNOV-THIN 38.7/100
CLAIMS-PAR 10.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -54% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: California Innovations Inc. (±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 Central’s 38.7 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 10.5 pts (27%) Velocity 4.0 pts (10%) Breadth 17.7 pts (46%) Claim depth 6.5 pts (17%)

Qualcomm Incorporated · highest

85
Central Research… · this assignee

39
3D Lighting… · lowest

7

What this shows Central's Innovation Score is 38.7/100 (top 40% 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 Central?

Each dot is one of Central’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). Central’s own 10.9 claims/patent is at or below the 13.3 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Central's grants concentrate

Central Research Institute OF Electric Power Industry is a focused PatentsView assignee: 25 CPC subclasses with 40% of grants classified under C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrys). Peak complete grant year is 2016 (4 grants) versus a trough of 1 in 2017. By volume, Central sits between California Innovations Inc. and Cifa S.P.A..

Central's three-year grant acceleration

Central Research Institute OF Electric Power Industry shows 3 grants in 2022–2024 against only 5 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.

California Innova…

20
Capsa Solutions

20
CCL Secure Pty

20
Central Iron AND…

20
Changzhou Jwei In…

20
China Technology…

20
Chudy Group

20
Cifa S P A

20
Central Research… ◀

20

What this shows Central holds 20 patents at rank #14,514, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Central

By rank, the assignees closest to #14,514 in granted patent volume.

Leaders in C30B (Single-crystal Growth)

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

Central's Innovation Score vs. every tracked assignee

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

39 Top 40% higher than 60% 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 · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Central Research Institute OF Electric Power Industry patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	15.0%
2016	4	20.0%
2017	1	5.0%
2018	3	15.0%
2019	2	10.0%
2021	3	15.0%
2022	1	5.0%
2023	1	5.0%
2024	1	5.0%
2025partial year	1	5.0%

Which technologies does Central Research Institute OF Electric Power Industry patent most?

C30B - Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrystalline Material With Defined Structure ; Single Crystals OR Homogeneous Polycrystalline Material WI 8

H01L - Semiconductor Devices NOT Covered BY Class H10 5

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 5

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

G21F - Protection Against X-radiation, Gamma Radiation, Corpuscular Radiation OR Particle BOMBARDMENT; Treating Radioactively Contaminated MATERIAL; Decontamination Arrangements Therefor 4

H10D - Inorganic Electric Semiconductor Devices 3

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 3

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 2

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 2

F23D - Burners 1

G06V - Image OR Video Recognition OR Understanding 1

G06K - Graphical Data Reading ; Presentation OF DATA; Record CARRIERS; Handling Record Carriers 1

G06T - Image Data Processing OR Generation, IN General 1

G21C - Nuclear Reactors 1

Top 15 of 25 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

Central Research Institute OF Electric Power Industry's patent record in context - here's where to go next.

Central Research Institute OF Electric Power Industry's lead technology class is C30B (Single-crystal Growth ; Unidirectional Solidification OF Eutectic Material OR Unidirectional Demixing OF Eutectoid MATERIAL; Refining BY Zone-melting OF Material ; Production OF A Homogeneous Polycrys), 40% of its portfolio - see every assignee active in that class. Explore C30B
Ranked #14,523 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Central Research Institute OF Electric Power Industry against California Innovations Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 38.7/100 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.