PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

CRRC TANGSHAN CO., LTD.

USPTO PatentsView assignee record — 24 granted patents across 22 technology areas, active 2017–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. 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 ).

Explore the portfolio See the ranking
24
Total patents granted
22
CPC technology areas
15.1
Avg claims per patent
+400%
5-year filing velocity

Portfolio overview

CRRC TANGSHAN CO., LTD. has been granted 24 US utility patents between 2017 and 2025, placing CRRC TANGSHAN CO., LTD. at rank #12,386 across all assignees tracked by PlainPatent. This portfolio spans 22 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.1 claims per patent with primary concentration in 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 ). As a Foreign Corporation, CRRC TANGSHAN CO., LTD. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 52.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 20 grants, compared with 4 in the 2015–2019 window — a +400% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. CRRC TANGSHAN CO., LTD.'s 15.1 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 22 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark CRRC TANGSHAN CO., LTD. against peers pursuing similar technology classes.

How does CRRC compare?

Granted US patents 2015–2025 versus the largest corporate holders — this company marked ◀

patents

What this shows CRRC holds 24 patents — placing it at rank #12,386 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.

Source USPTO PatentsView — granted utility patents As of 2015–2025

USPTO utility patent grants by year · 2017–2025

02468 20172019202020212022202320242025 2
USPTO utility patent grants by year · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table
CRRC TANGSHAN CO., LTD. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2017 2 8.3%
2019 2 8.3%
2020 1 4.2%
2021 3 12.5%
2022 7 29.2%
2023 1 4.2%
2024 6 25.0%
2025 2 8.3%

Which technologies does CRRC TANGSHAN CO., LTD. patent most?

Top 15 of 22 technology areas

Patent Moat Analysis

Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Accelerating

Where it ranks

Overall rank by patents

#12,386

Across all tracked assignees

Innovation Score

52.3 out of 100

View all rankings →

Data Source

USPTO PatentsView — US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does CRRC TANGSHAN CO., LTD. hold?
CRRC TANGSHAN CO., LTD. holds 24 US granted patents filed between 2017 and 2025, spanning 22 technology areas.
What is CRRC TANGSHAN CO., LTD.'s Innovation Score?
CRRC TANGSHAN CO., LTD. has an Innovation Score of 52.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does CRRC TANGSHAN CO., LTD. focus on?
CRRC TANGSHAN 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 11 patents. The company has filed patents in 22 CPC subclasses total.
Is CRRC TANGSHAN CO., LTD.'s patent filing rate increasing or decreasing?
CRRC TANGSHAN CO., LTD.'s recent filing velocity is +400% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for CRRC TANGSHAN CO., LTD.'s patents?
CRRC TANGSHAN CO., LTD.'s patents average 15.1 claims each. This falls within the standard range, providing solid legal coverage.
How is the CRRC TANGSHAN 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.

Learn More

How Innovation Score Works

Understand the four dimensions behind the composite score
How to Read Patent Data

Plain-English guide to CPC codes, claims, and metrics
Patent Moat Analysis

How companies use patents as competitive barriers

Explore the patent dataset

B61F technology

CRRC TANGSHAN CO., LTD.'s primary CPC class — all holders and yearly trends
Top 50 patent holders

See where CRRC TANGSHAN CO., LTD. ranks among the largest US patent assignees
All technology classes

Browse every CPC technology area by patent activity
How the score works

The four dimensions behind the Innovation Score

Related

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Data sourced from USPTO PatentsView — official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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.

All federal data sources used on this page
  • USPTO PatentsView — official U.S. Patent and Trademark Office bulk patent data. patentsview.org
  • USPTO Patent Application Information Retrieval (PAIR) — application status and file history. uspto.gov/patents/pair
  • USPTO Bulk Data Storage System — comprehensive patent text + claims dataset. bulkdata.uspto.gov
  • USPTO CPC Classification — Cooperative Patent Classification scheme for technology categorization. uspto.gov/cpc
  • SEC EDGAR — public filings cross-reference for assignee corporate entity matching. sec.gov/edgar
  • WIPO PATENTSCOPE — international patent context (related international filings). wipo.int/patentscope