Where does Chengdu University OF Technology rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Chengdu University OF Technology ranks #4,936 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Chengdu University OF Technology hold?

Chengdu University OF Technology holds 70 US utility patents granted 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 (top 2% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Chengdu University OF Technology's patent grant 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 an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Chengdu University OF Technology

Q: 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, ranking #186 of 1,363 assignees active in that subclass. Grants appear in 44 CPC subclasses total.

USPTO PatentsView assignee record - 70 granted patents across 44 technology areas, recorded in grant years 2020–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. 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 · May 15, 2026

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The verdict

According to USPTO PatentsView, Chengdu ranks #4,936 of 49,997 tracked US assignees by granted-patent volume, with 70 patents across 44 technology areas.

#4,936
of 49,997 US assignees by volume: Top 2%
by Innovation Score (63.0/100): 8.0
avg claims per patent

USPTO PatentsView assignee plate

Corpus R4936 · Foreign Corporation #4,936 · 70 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 70 grants
TOP-DECILE #4,936/49,997
PHOTO-FINISH Alpha Networks
CPC-WIDE E21B · 44 areas
INNOV-STRONG 63.0/100
CLAIMS-PAR 8.0 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2025 · 6y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Alpha Networks Inc. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

Qualcomm Incorporated · highest

85
Chengdu University… · this assignee

63
E Ink Holdings · near

63
Hayward Industries · near

63
Smith & Nephew · near

63
Spotify AB · near

63
3D Lighting… · lowest

7

What this shows Chengdu's Innovation Score is 63.0/100 (top 2% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Where Chengdu's grants concentrate

Chengdu University OF Technology is a focused PatentsView assignee: 44 CPC subclasses with 27.1% of grants classified under E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells). Peak complete grant year is 2023 (18 grants) versus a trough of 4 in 2020. By volume, Chengdu sits between Alpha Networks Inc. and Eads Deutschland GmbH.

Chengdu's three-year grant acceleration

Chengdu University OF Technology shows 45 grants in 2022–2024 against only 9 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Alpha Networks

70
Avid Technology

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Chengdu, neither rank-band nor same-CPC leaders (those blocks stay above). In E21B (Earth OR Rock Drilling), Chengdu ranks #186 of 1,363 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (63 here).

Hayward Industries, Inc. 63 Smith & Nephew PLC 63 Spotify AB 63 E Ink Holdings Inc. 63

Similar claim depth

Nearest assignees by average claims per patent (8.0 here).

Chiyoda Corporation 8.0 avg Dupont Safety & Construction, Inc. 8.0 avg Korloy Inc. 8.0 avg Fujikin Incorporated 8.0 avg

Chengdu's Innovation Score vs. every tracked assignee

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

63 Top 2% higher than 98% of 49,997 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%
2025partial year	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

Where it ranks

Overall rank by patents

#4,936

of 49,997 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?

What to do with this data

Chengdu University OF Technology's patent record in context - here's where to go next.

Chengdu University OF Technology's lead technology class is E21B (Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells), 27.1% of its portfolio - see every assignee active in that class. Explore E21B
Ranked #4,936 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Chengdu University OF Technology against Alpha Networks Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 63.0/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

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

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, US Patent Intelligence Editorial Process · 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.