Overall rank by patents
#3,960
Across all tracked assignees
USPTO 2015–2025 USPTO PatentsView Foreign Corporation
CRRC QINGDAO SIFANG CO., LTD.
USPTO PatentsView assignee record — 91 granted patents across 69 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).
91
Total patents granted
69
CPC technology areas
12.9
Avg claims per patent
+125%
5-year filing velocity
Portfolio overview
CRRC QINGDAO SIFANG CO., LTD. has been granted 91 US utility patents between 2017 and 2025, placing CRRC QINGDAO SIFANG CO., LTD. at rank #3,960 across all assignees tracked by PlainPatent. This portfolio spans 69 distinct Cooperative Patent Classification (CPC) subclasses, averaging 12.9 claims per patent with primary concentration in B61D (BODY DETAILS OR KINDS OF RAILWAY VEHICLES). As a Foreign Corporation, CRRC QINGDAO SIFANG CO., LTD. is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 56.5/100 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 63 grants, compared with 28 in the 2015–2019 window — a +125% 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 QINGDAO SIFANG CO., LTD.'s 12.9 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 69 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark CRRC QINGDAO SIFANG 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 Qingdao Sifa… ◀ 91
CRRC QINGDAO SIFANG CO., LTD.
91 patents
What this shows CRRC holds 91 patents — placing it at rank #3,960 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 | 6 | 6.6% |
| 2018 | 10 | 11.0% |
| 2019 | 12 | 13.2% |
| 2020 | 6 | 6.6% |
| 2021 | 14 | 15.4% |
| 2022 | 16 | 17.6% |
| 2023 | 10 | 11.0% |
| 2024 | 13 | 14.3% |
| 2025 | 4 | 4.4% |
Which technologies does CRRC QINGDAO SIFANG CO., LTD. patent most?
Top 15 of 69 technology areas
Patent Moat Analysis
Portfolio Volume Light
Tech Breadth Multi-domain
Claim Depth Standard
Velocity Accelerating
Frequently Asked Questions
How many patents does CRRC QINGDAO SIFANG CO., LTD. hold?
CRRC QINGDAO SIFANG CO., LTD. holds 91 US granted patents filed between 2017 and 2025, spanning 69 technology areas.
What is CRRC QINGDAO SIFANG CO., LTD.'s Innovation Score?
CRRC QINGDAO SIFANG CO., LTD. has an Innovation Score of 56.5 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 QINGDAO SIFANG CO., LTD. focus on?
CRRC QINGDAO SIFANG CO., LTD.'s top technology area is B61D (BODY DETAILS OR KINDS OF RAILWAY VEHICLES) with 33 patents. The company has filed patents in 69 CPC subclasses total.
Is CRRC QINGDAO SIFANG CO., LTD.'s patent filing rate increasing or decreasing?
CRRC QINGDAO SIFANG CO., LTD.'s recent filing velocity is +125% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for CRRC QINGDAO SIFANG CO., LTD.'s patents?
CRRC QINGDAO SIFANG CO., LTD.'s patents average 12.9 claims each. This falls within the standard range, providing solid legal coverage.
How is the CRRC QINGDAO SIFANG 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 QINGDAO SIFANG CO., LTD.'s primary CPC class — all holders and yearly trends
Top 50 patent holders
See where CRRC QINGDAO SIFANG 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
