Where does Crrc Zhuzhou Institute Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Crrc Zhuzhou Institute Co., Ltd. ranks #45,945 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 Crrc Zhuzhou Institute Co., Ltd. hold?

Crrc Zhuzhou Institute Co., Ltd. holds 5 US utility patents granted between 2018 and 2020, spanning 12 technology areas.

What is Crrc Zhuzhou Institute Co., Ltd.'s Innovation Score?

Crrc Zhuzhou Institute Co., Ltd. has an Innovation Score of 23.1 out of 100 (12th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Crrc Zhuzhou Institute Co., Ltd. focus on?

Crrc Zhuzhou Institute Co., Ltd.'s top technology area is B61C (LOCOMOTIVES; Motor Railcars) with 1 patents, ranking #49 of 76 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

Is Crrc Zhuzhou Institute Co., Ltd.'s patent grant rate increasing or decreasing?

Crrc Zhuzhou Institute Co., Ltd.'s recent grant velocity is -33% 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 Crrc Zhuzhou Institute Co., Ltd.'s patents?

Crrc Zhuzhou Institute Co., Ltd.'s patents average 7.8 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 Crrc Zhuzhou Institute Co., 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

Crrc Zhuzhou Institute Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 12 technology areas, recorded in grant years 2018–2020. 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: B61C (LOCOMOTIVES; Motor Railcars).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Crrc ranks #45,945 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 12 technology areas.

#45,945
of 49,997 US assignees by volume: 12th percentile
by Innovation Score (23.1/100): 7.8
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R45945 · Foreign Corporation #45,945 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,945/49,997
PHOTO-FINISH Cristalfarma S R L
CPC-FOCUS B61C · 12 areas
INNOV-THIN 23.1/100
CLAIMS-SPARSE 7.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Cristalfarma S.R.L. (±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 Crrc’s 23.1 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 6.2 pts (27%) Velocity 0.0 pts (0%) Breadth 12.2 pts (53%) Claim depth 4.7 pts (20%)

Qualcomm Incorporated · highest

85
Xallent · near

23
Crrc Zhuzhou Institute · this assignee

23
Koncept · near

23
Portal AI · near

23
Anonymous Media… · near

23
3D Lighting… · lowest

7

What this shows Crrc's Innovation Score is 23.1/100 (12th 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 Crrc?

Each dot is one of Crrc’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). Crrc’s own 7.8 claims/patent is at or below the 15.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Crrc's grants concentrate

Crrc Zhuzhou Institute Co., Ltd. is a focused PatentsView assignee: 12 CPC subclasses with 20% of grants classified under B61C (LOCOMOTIVES; Motor Railcars). Peak complete grant year is 2019 (2 grants) versus a trough of 1 in 2018. By volume, Crrc sits between Cristalfarma S.R.L. and CSI Enterprises, Inc..

Cristalfarma S R L

5
Croma-pharma

5
Crompton Ventures

5
Crossno & Kaye

5
Crrc Zhuzhou Loco…

5
CS Tech Holdings

5
CSG Systems

5
CSI Enterprises

5
Crrc Zhuzhou Inst… ◀

5

What this shows Crrc holds 5 patents at rank #45,670, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Crrc

By rank, the assignees closest to #45,670 in granted patent volume.

Leaders in B61C (Locomotives)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Crrc, neither rank-band nor same-CPC leaders (those blocks stay above). In B61C (Locomotives), Crrc ranks #49 of 76 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (23 here).

Xallent Inc. 23 Portal AI Inc. 23 Koncept Technologies, Inc. 23 Anonymous Media Research Holdings, LLC 23

Crrc's Innovation Score vs. every tracked assignee

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

23 12th percentile higher than 12% 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 · 2018–2020

Grants by year

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

View data table

Crrc Zhuzhou Institute Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	20.0%
2019	2	40.0%
2020	2	40.0%

Which technologies does Crrc Zhuzhou Institute Co., Ltd. patent most?

B61C - LOCOMOTIVES; Motor Railcars 1

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 1

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 1

B60T - Vehicle Brake Control Systems OR Parts THEREOF; Brake Control Systems OR Parts Thereof, IN General ; Arrangement OF Braking Elements ON Vehicles IN GENERAL; Portable Devices FOR Preventing Unwanted Movement OF VEHICLES; Vehicle Modifications TO Facilitate Cooling OF Brakes 1

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

H04W - Wireless Communication Networks 1

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

H02S - Generation OF Electric Power BY Conversion OF Infrared Radiation, Visible Light OR Ultraviolet Light, e.g. Using Photovoltaic [PV] Modules 1

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 1

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 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

Crrc Zhuzhou Institute Co., Ltd.'s patent record in context - here's where to go next.

Crrc Zhuzhou Institute Co., Ltd.'s lead technology class is B61C (LOCOMOTIVES; Motor Railcars), 20% of its portfolio - see every assignee active in that class. Explore B61C
Ranked #45,945 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Crrc Zhuzhou Institute Co., Ltd. against Cristalfarma S.R.L., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 23.1/100 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.