Where does Crrc Nanjing Puzhen Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Crrc Nanjing Puzhen Co., Ltd. ranks #19,636 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 Nanjing Puzhen Co., Ltd. hold?

Crrc Nanjing Puzhen Co., Ltd. holds 14 US utility patents granted between 2021 and 2025, spanning 19 technology areas.

What is Crrc Nanjing Puzhen Co., Ltd.'s Innovation Score?

Crrc Nanjing Puzhen Co., Ltd. has an Innovation Score of 52.0 out of 100 (top 11% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Crrc Nanjing Puzhen Co., Ltd.'s patent grant rate increasing or decreasing?

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

What does claim depth mean for Crrc Nanjing Puzhen Co., Ltd.'s patents?

Crrc Nanjing Puzhen Co., Ltd.'s patents average 12.0 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 Nanjing Puzhen 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 Nanjing Puzhen Co., Ltd.

Q: What technology areas does Crrc Nanjing Puzhen Co., Ltd. focus on?

Crrc Nanjing Puzhen Co., Ltd.'s top technology area is 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) with 4 patents, ranking #25 of 85 assignees active in that subclass. Grants appear in 19 CPC subclasses total.

USPTO PatentsView assignee record - 14 granted patents across 19 technology areas, recorded in grant years 2021–2025. 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: 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 ).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Crrc ranks #19,636 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 19 technology areas.

#19,636
of 49,997 US assignees by volume: Top 11%
by Innovation Score (52.0/100): 12.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R19636 · Foreign Corporation #19,636 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 14 grants
MID-PACK #19,636/49,997
PHOTO-FINISH Cable Components Group
CPC-FOCUS B61F · 19 areas
INNOV-PAR 52.0/100
CLAIMS-RICH 12.0 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Cable Components Group, LLC (±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 52.0 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 9.4 pts (18%) Velocity 20.0 pts (38%) Breadth 15.4 pts (30%) Claim depth 7.2 pts (14%)

Qualcomm Incorporated · highest

85
Crrc Nanjing Puzhen · this assignee

52
3D Lighting… · lowest

7

What this shows Crrc's Innovation Score is 52.0/100 (top 11% 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 12.0 claims/patent is at or below the 16.7 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 Nanjing Puzhen Co., Ltd. is a focused PatentsView assignee: 19 CPC subclasses with 28.6% of grants classified under 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 ). Peak complete grant year is 2023 (6 grants) versus a trough of 2 in 2021. By volume, Crrc sits between Cotton Seed International Proprietary Limited and Cambium Business Group, Inc..

Crrc's three-year grant acceleration

Crrc Nanjing Puzhen Co., Ltd. shows 8 grants in 2022–2024 against only 2 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.

Cotton Seed Inter…

14
CQV

14
CR Minerals

14
Crc-evans Pipelin…

14
Crux Biomedical

14
Crystal Pharma U

14
Cable Components…

14
Cambium Business…

14
Crrc Nanjing Puzh… ◀

14

What this shows Crrc holds 14 patents at rank #19,596, 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 #19,596 in granted patent volume.

Leaders in B61F (Rail Vehicle Suspensions)

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)

52 Top 11% higher than 89% 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 · 2021–2025

Grants by year

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

View data table

Crrc Nanjing Puzhen Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	2	14.3%
2023	6	42.9%
2024	2	14.3%
2025partial year	4	28.6%

Which technologies does Crrc Nanjing Puzhen Co., Ltd. patent most?

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 4

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 4

B61L - Guiding Railway TRAFFIC; Ensuring THE Safety OF Railway Traffic 4

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 4

B61H - Brakes OR Other Retarding Devices Specially Adapted FOR Rail VEHICLES; Arrangement OR Disposition Thereof IN Rail Vehicles 3

Y02T - Climate Change Mitigation Technologies Related TO Transportation 2

B61D - Body Details OR Kinds OF Railway Vehicles 2

B61C - LOCOMOTIVES; Motor Railcars 2

H01H - Electric SWITCHES; RELAYS; SELECTORS; Emergency Protective Devices 2

B61G - COUPLINGS; Draught AND Buffing Appliances 2

H02H - Emergency Protective Circuit Arrangements 2

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 1

B61K - Auxiliary Equipment Specially Adapted FOR Railways, NOT Otherwise Provided FOR 1

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

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

Top 15 of 19 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 Nanjing Puzhen Co., Ltd.'s patent record in context - here's where to go next.

Crrc Nanjing Puzhen Co., Ltd.'s lead technology class is 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 ), 28.6% of its portfolio - see every assignee active in that class. Explore B61F
Ranked #19,636 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Crrc Nanjing Puzhen Co., Ltd. against Cotton Seed International Proprietary Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.0/100 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.