USPTO 2015–2025 USPTO PatentsView Foreign Corporation

China University of Mining and Technology

USPTO PatentsView assignee record — 272 granted patents across 131 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E21F (SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS).

272
Total patents granted
131
CPC technology areas
6.5
Avg claims per patent
+106%
5-year filing velocity

Portfolio overview

China University of Mining and Technology has been granted 272 US utility patents between 2015 and 2025, placing China University of Mining and Technology at rank #1,532 across all assignees tracked by PlainPatent. This portfolio spans 131 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.5 claims per patent with primary concentration in E21F (SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS). As a Foreign Corporation, China University of Mining and Technology is one of the broader-portfolio assignees in the PatentsView dataset. The composite Innovation Score of 52.5/100 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 183 grants, compared with 89 in the 2015–2019 window — a +106% 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. China University of Mining and Technology's 6.5 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark China University of Mining and Technology against peers pursuing similar technology classes.

How does China compare?

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

patents

What this shows China holds 272 patents — placing it at rank #1,532 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 · 2015–2025

-200204060 20152016201720182019202020212022202320242025 31
USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table
China University of Mining and Technology patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 1 0.4%
2016 10 3.7%
2017 16 5.9%
2018 33 12.1%
2019 29 10.7%
2020 34 12.5%
2021 48 17.6%
2022 26 9.6%
2023 19 7.0%
2024 25 9.2%
2025 31 11.4%

Which technologies does China University of Mining and Technology patent most?

Top 15 of 131 technology areas

Patent Moat Analysis

Portfolio Volume Moderate
Tech Breadth Diversified
Claim Depth Simple
Velocity Accelerating

Where it ranks

Overall rank by patents

#1,532

Across all tracked assignees

Innovation Score

52.5 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 China University of Mining and Technology hold?
China University of Mining and Technology holds 272 US granted patents filed between 2015 and 2025, spanning 131 technology areas.
What is China University of Mining and Technology's Innovation Score?
China University of Mining and Technology has an Innovation Score of 52.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).
What technology areas does China University of Mining and Technology focus on?
China University of Mining and Technology's top technology area is E21F (SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS) with 70 patents. The company has filed patents in 131 CPC subclasses total.
Is China University of Mining and Technology's patent filing rate increasing or decreasing?
China University of Mining and Technology's recent filing velocity is +106% compared to the prior five-year period. This indicates accelerating innovation.
What does claim depth mean for China University of Mining and Technology's patents?
China University of Mining and Technology's patents average 6.5 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the China University of Mining and Technology 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

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.

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