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

According to USPTO PatentsView (2015–2025 granted utility patents), Crrc Zhuzhou Locomotive Co., Ltd. ranks #45,946 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 Locomotive Co., Ltd. hold?

Crrc Zhuzhou Locomotive Co., Ltd. holds 5 US utility patents granted between 2021 and 2024, spanning 9 technology areas.

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

Crrc Zhuzhou Locomotive Co., Ltd. has an Innovation Score of 42.4 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Insufficient historical data is available to calculate a velocity trend for Crrc Zhuzhou Locomotive Co., Ltd..

What does claim depth mean for Crrc Zhuzhou Locomotive Co., Ltd.'s patents?

Crrc Zhuzhou Locomotive Co., Ltd.'s patents average 9.4 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 Crrc Zhuzhou Locomotive 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 Locomotive Co., Ltd.

Q: What technology areas does Crrc Zhuzhou Locomotive Co., Ltd. focus on?

Crrc Zhuzhou Locomotive Co., Ltd.'s top technology area is 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) with 3 patents, ranking #524 of 1,396 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 9 technology areas, recorded in grant years 2021–2024. 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: B60L (Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic SU).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Crrc ranks #45,946 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 9 technology areas.

#45,946
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.4/100): 9.4
avg claims per patent

USPTO PatentsView assignee plate

Corpus R45946 · Foreign Corporation #45,946 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 5 grants
BOTTOM-DECILE #45,946/49,997
PHOTO-FINISH Croma-pharma
CPC-NARROW B60L · 9 areas
INNOV-PAR 42.4/100
CLAIMS-PAR 9.4 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2024 · 4y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Croma-pharma GMBH (±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 42.4 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 (15%) Velocity 20.0 pts (47%) Breadth 10.6 pts (25%) Claim depth 5.6 pts (13%)

Qualcomm Incorporated · highest

85
Crrc Zhuzhou… · this assignee

42
3D Lighting… · lowest

7

What this shows Crrc's Innovation Score is 42.4/100 (top 31% 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 9.4 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 Locomotive Co., Ltd. is a focused PatentsView assignee: 9 CPC subclasses with 60% of grants classified under B60L (Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic SU). Peak complete grant year is 2023 (2 grants) versus a trough of 1 in 2021. By volume, Crrc sits between Croma-pharma GMBH and Csic Pride (NANJING) Cryogenic Technology Co., Ltd..

Crrc's three-year grant acceleration

Crrc Zhuzhou Locomotive Co., Ltd. shows 4 grants in 2022–2024 against only 1 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.

Croma-pharma

5
Crompton Ventures

5
Crossno & Kaye

5
Crrc Zhuzhou Inst…

5
CS Tech Holdings

5
CSG Systems

5
CSI Enterprises

5
Csic Pride (Nanji…

5
Crrc Zhuzhou Loco… ◀

5

What this shows Crrc holds 5 patents at rank #45,671, 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 #45,671 in granted patent volume.

Leaders in B60L (Propulsion OF Electrically-propelled Vehicles)

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

Crrc's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2021–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Crrc Zhuzhou Locomotive Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	20.0%
2023	2	40.0%
2024	2	40.0%

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

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 3

B61C - LOCOMOTIVES; Motor Railcars 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

B61B - Railway SYSTEMS; Equipment Therefor NOT Otherwise Provided FOR 1

B61F - Rail Vehicle Suspensions, e.g. Underframes, Bogies OR Arrangements OF Wheel AXLES; Rail Vehicles FOR USE ON Tracks OF Different WIDTH; Preventing Derailing OF Rail VEHICLES; Wheel Guards, Obstruction Removers OR THE Like FOR Rail Vehicles 1

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

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 1

B60M - Power Supply Lines, AND Devices Along Rails, FOR Electrically- Propelled Vehicles 1

B61G - COUPLINGS; Draught AND Buffing Appliances 1

Top 9 of 9 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 Locomotive Co., Ltd.'s patent record in context - here's where to go next.

Crrc Zhuzhou Locomotive Co., Ltd.'s lead technology class is B60L (Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic SU), 60% of its portfolio - see every assignee active in that class. Explore B60L
Ranked #45,946 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Crrc Zhuzhou Locomotive Co., Ltd. against Croma-pharma GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.4/100 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.