USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chengdu University OF Technology

USPTO PatentsView assignee record - 70 granted patents across 44 technology areas, active 2020–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS).

Compiled by PlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.0

Avg claims per patent

5-year filing velocity

The verdict

Chengdu holds 70 US patents across 44 technology areas, rank #4,936 of 50,000 tracked assignees.

#4,936
of 50,000 US assignees by volume: Top 2%
by Innovation Score (63.0/100): 8.0
avg claims per patent

Portfolio overview

Chengdu University OF Technology has been granted 70 US utility patents between 2020 and 2025, placing Chengdu University OF Technology at rank #4,936 across all assignees tracked by PlainPatent. This portfolio spans 44 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.0 claims per patent with primary concentration in E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS). As a Foreign Corporation, Chengdu University OF Technology is one of the more focused assignees in the PatentsView dataset. By volume, Chengdu sits between Alpha Networks Inc. (70 patents, rank #4,932) and EADS Deutschland Gmbh (70 patents, rank #4,940) - the closest US assignees by grant volume. The composite Innovation Score of 63.0/100 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. Historical data spans 2020 through 2025, with 70 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. 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. Chengdu University OF Technology's 8.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 44 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Chengdu University OF Technology against peers pursuing similar technology classes.

Alpha Networks

70
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70
AXIS Lighting

70
BLU DOT Design &…

70
Closure Systems I…

70
Coldquanta

70
Conviva

70
EADS Deutschland

70
Chengdu Universit… ◀

70

What this shows Chengdu holds 70 patents at rank #4,936, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Chengdu

By rank, the assignees closest to #4,936 in granted patent volume.

Leaders in E21B (Earth OR ROCK Drilling)

Other assignees with the most granted patents in Chengdu's primary technology class.

Chengdu's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

63 Top 2% higher than 98% of 50,000 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 · 2020–2025

Grants by year

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

View data table

Chengdu University OF Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	4	5.7%
2021	5	7.1%
2022	11	15.7%
2023	18	25.7%
2024	16	22.9%
2025	16	22.9%

Which technologies does Chengdu University OF Technology patent most?

E21B - EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS 19

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 16

G06F - ELECTRIC DIGITAL DATA PROCESSING 15

G01V - GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 11

G06T - IMAGE DATA PROCESSING OR GENERATION, IN GENERAL 6

G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR 5

G06V - IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING 4

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 4

G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION 3

B25J - MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES 3

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 3

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 3

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 3

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 3

G06Q - INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR 2

Top 15 of 44 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Where it ranks

Overall rank by patents

#4,936

Across all tracked assignees

Innovation Score

63.0 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 Chengdu University OF Technology hold?

Chengdu University OF Technology holds 70 US granted patents filed between 2020 and 2025, spanning 44 technology areas.

What is Chengdu University OF Technology's Innovation Score?

Chengdu University OF Technology has an Innovation Score of 63.0 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Chengdu University OF Technology focus on?

Chengdu University OF Technology's top technology area is E21B (EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS) with 19 patents. The company has filed patents in 44 CPC subclasses total.

Is Chengdu University OF Technology's patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Chengdu University OF Technology.

What does claim depth mean for Chengdu University OF Technology's patents?

Chengdu University OF Technology's patents average 8.0 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Chengdu University OF 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.

How to use this portfolio

Chengdu's 70 grants land it in the top 2% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Chengdu ranks #4,936 of 50,000. Top 50 holders
Most of this portfolio concentrates in E21B - see who else leads that technology area. E21B leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

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.

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 Editorial, US Patent Intelligence Editorial Team · 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.