Overall rank by patents
#24,093
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
CRRC QIQIHAR ROLLING STOCK CO., LTD.
USPTO PatentsView assignee record — 11 granted patents across 9 technology areas, active 2017–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B61D (BODY DETAILS OR KINDS OF RAILWAY VEHICLES).
11
Total patents granted
9
CPC technology areas
14.2
Avg claims per patent
+75%
5-year filing velocity
Portfolio overview
CRRC QIQIHAR ROLLING STOCK CO., LTD. has been granted 11 US utility patents between 2017 and 2025, placing CRRC QIQIHAR ROLLING STOCK CO., LTD. at rank #24,093 across all assignees tracked by PlainPatent. This portfolio spans 9 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.2 claims per patent with primary concentration in B61D (BODY DETAILS OR KINDS OF RAILWAY VEHICLES). As a Foreign Corporation, CRRC QIQIHAR ROLLING STOCK CO., LTD. is one of the more focused assignees in the PatentsView dataset. The composite Innovation Score of 30.4/100 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 7 grants, compared with 4 in the 2015–2019 window — a +75% 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 QIQIHAR ROLLING STOCK CO., LTD.'s 14.2 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 9 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark CRRC QIQIHAR ROLLING STOCK 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 ◀
- Samsung
SAMSUNG ELECTRONICS CO., LTD.
106,890 patents
- International Bus…
International Business Machines Corporation
72,926 patents
- Canon 34,378
Canon Kabushiki Kaisha
34,378 patents
- LG 32,607
LG ELECTRONICS INC.
32,607 patents
- Taiwan Semiconduc… 31,041
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
31,041 patents
- Apple 30,560
Apple Inc.
30,560 patents
- Qualcomm Incorpor… 30,354
QUALCOMM Incorporated
30,354 patents
- Intel 27,498
Intel Corporation
27,498 patents
- CRRC Qiqihar Roll… ◀ 11
CRRC QIQIHAR ROLLING STOCK CO., LTD.
11 patents
What this shows CRRC holds 11 patents — placing it at rank #24,093 overall, well behind the volume leaders but ahead of the tens of thousands of smaller assignees in the dataset.
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
| Year | Patents Granted | Share of Period |
|---|---|---|
| 2017 | 1 | 9.1% |
| 2018 | 2 | 18.2% |
| 2019 | 1 | 9.1% |
| 2020 | 4 | 36.4% |
| 2023 | 1 | 9.1% |
| 2024 | 1 | 9.1% |
| 2025 | 1 | 9.1% |
Which technologies does CRRC QIQIHAR ROLLING STOCK CO., LTD. patent most?
Top 9 of 9 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Focused
Claim Depth Standard
Velocity Accelerating
Frequently Asked Questions
How many patents does CRRC QIQIHAR ROLLING STOCK CO., LTD. hold?
CRRC QIQIHAR ROLLING STOCK CO., LTD. holds 11 US granted patents filed between 2017 and 2025, spanning 9 technology areas.
What is CRRC QIQIHAR ROLLING STOCK CO., LTD.'s Innovation Score?
CRRC QIQIHAR ROLLING STOCK CO., LTD. has an Innovation Score of 30.4 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 QIQIHAR ROLLING STOCK CO., LTD. focus on?
CRRC QIQIHAR ROLLING STOCK CO., LTD.'s top technology area is B61D (BODY DETAILS OR KINDS OF RAILWAY VEHICLES) with 4 patents. The company has filed patents in 9 CPC subclasses total.
Is CRRC QIQIHAR ROLLING STOCK CO., LTD.'s patent filing rate increasing or decreasing?
CRRC QIQIHAR ROLLING STOCK CO., LTD.'s recent filing velocity is +75% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for CRRC QIQIHAR ROLLING STOCK CO., LTD.'s patents?
CRRC QIQIHAR ROLLING STOCK CO., LTD.'s patents average 14.2 claims each. This falls within the standard range, providing solid legal coverage.
How is the CRRC QIQIHAR ROLLING STOCK 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
Explore the patent dataset
B61D technology
CRRC QIQIHAR ROLLING STOCK CO., LTD.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where CRRC QIQIHAR ROLLING STOCK 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
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
