Where does Liaoning University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Liaoning University ranks #36,240 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 Liaoning University hold?

Liaoning University holds 7 US utility patents granted between 2020 and 2025, spanning 7 technology areas.

What is Liaoning University's Innovation Score?

Liaoning University has an Innovation Score of 37.8 out of 100 (top 43% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Liaoning University focus on?

Liaoning University's top technology area is E21F (Safety Devices, Transport, Filling-up, Rescue, Ventilation, OR Draining IN OR OF Mines OR Tunnels) with 3 patents, ranking #19 of 76 assignees active in that subclass. Grants appear in 7 CPC subclasses total.

Is Liaoning University's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Liaoning University.

What does claim depth mean for Liaoning University's patents?

Liaoning University's patents average 13.1 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 Liaoning University 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

Liaoning University

USPTO PatentsView assignee record - 7 granted patents across 7 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: E21F (Safety Devices, Transport, Filling-up, Rescue, Ventilation, OR Draining IN OR OF Mines OR Tunnels).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Liaoning ranks #36,240 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 7 technology areas.

#36,240
of 49,997 US assignees by volume: Top 43%
by Innovation Score (37.8/100): 13.1
avg claims per patent

USPTO PatentsView assignee plate

Corpus R36240 · Foreign Corporation #36,240 · 7 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 7 grants
MID-PACK #36,240/49,997
PHOTO-FINISH Level Terrain
CPC-NARROW E21F · 7 areas
INNOV-THIN 37.8/100
CLAIMS-RICH 13.1 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2025 · 6y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Level Terrain (±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.

How Liaoning’s 37.8 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 7.2 pts (19%) Velocity 13.3 pts (35%) Breadth 9.4 pts (25%) Claim depth 7.9 pts (21%)

Qualcomm Incorporated · highest

85
Liaoning University · this assignee

38
3D Lighting… · lowest

7

What this shows Liaoning's Innovation Score is 37.8/100 (top 43% 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.

Does more volume mean deeper claims for Liaoning?

Each dot is one of Liaoning’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). Liaoning’s own 13.1 claims/patent is at or below the 14.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

Liaoning vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

Where Liaoning's grants concentrate

Liaoning University is a focused PatentsView assignee: 7 CPC subclasses with 42.9% of grants classified under E21F (Safety Devices, Transport, Filling-up, Rescue, Ventilation, OR Draining IN OR OF Mines OR Tunnels). Peak complete grant year is 2023 (3 grants) versus a trough of 1 in 2020. By volume, Liaoning sits between Level Terrain and Lifewatch Technologies Ltd..

Liaoning's three-year grant acceleration

Liaoning University shows 4 grants in 2022–2024 against only 2 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.

Level Terrain

7
Leviant

7
Levyx

7
Lexor

7
Lifepod Solutions

7
Lifewire

7
Lifestyle Solutio…

7
Lifewatch

7
Liaoning Universi… ◀

7

What this shows Liaoning holds 7 patents at rank #36,262, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Liaoning

By rank, the assignees closest to #36,262 in granted patent volume.

Leaders in E21F (Safety Devices)

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

Liaoning's Innovation Score vs. every tracked assignee

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

38 Top 43% higher than 57% 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

Liaoning University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	1	14.3%
2021	1	14.3%
2022	1	14.3%
2023	3	42.9%
2025partial year	1	14.3%

Which technologies does Liaoning University patent most?

E21F - Safety Devices, Transport, Filling-up, Rescue, Ventilation, OR Draining IN OR OF Mines OR Tunnels 3

E21D - SHAFTS; TUNNELS; GALLERIES; Large Underground Chambers 3

E21C - Mining OR Quarrying 2

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 1

G01V - GEOPHYSICS; Gravitational MEASUREMENTS; Detecting Masses OR OBJECTS; Tags 1

Top 7 of 7 technology areas

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

Liaoning University's patent record in context - here's where to go next.

Liaoning University's lead technology class is E21F (Safety Devices, Transport, Filling-up, Rescue, Ventilation, OR Draining IN OR OF Mines OR Tunnels), 42.9% of its portfolio - see every assignee active in that class. Explore E21F
Ranked #36,240 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Liaoning University against Level Terrain, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 37.8/100 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.