Where does Ludong University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ludong University ranks #22,922 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Ludong University hold?

Ludong University holds 12 US utility patents granted between 2022 and 2024, spanning 19 technology areas.

What is Ludong University's Innovation Score?

Ludong University has an Innovation Score of 48.8 out of 100 (top 16% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Ludong University focus on?

Ludong University's top technology area is Y02A (TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE) with 5 patents. Grants appear in 19 CPC subclasses total.

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

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

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

Ludong University's patents average 7.6 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 Ludong 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

Ludong University

USPTO PatentsView assignee record - 12 granted patents across 19 technology areas, recorded in grant years 2022–2024. 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: Y02A (TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Ludong ranks #22,922 of 50,000 tracked US assignees by granted-patent volume, with 12 patents across 19 technology areas.

#22,922
of 50,000 US assignees by volume: Top 16%
by Innovation Score (48.8/100): 7.6
avg claims per patent

USPTO PatentsView assignee plate

Corpus R22922 · Foreign Corporation #22,922 · 12 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 12 grants
MID-PACK #22,922/50,000
PHOTO-FINISH Liteboxer
CPC-FOCUS Y02A · 19 areas
INNOV-PAR 48.8/100
CLAIMS-SPARSE 7.6 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2022–2024 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Liteboxer Technologies, 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
Ludong University · this assignee

49
3D Lighting Innovati… · lowest

7

What this shows Ludong's Innovation Score is 48.8/100 (top 16% 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 Ludong's grants concentrate

Ludong University is a focused PatentsView assignee: 19 CPC subclasses with 41.7% of grants classified under Y02A (TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE). Peak complete grant year is 2023 (9 grants) versus a trough of 1 in 2022. By volume, Ludong sits between Liteboxer Technologies, Inc. and M2M And Iot Technologies, Llc.

Liteboxer

12
Liveclips

12
Lockheed Martin C…

12
Locus Location Sy…

12
Luminus Devices

12
Lundbeck La Jolla…

12
M S T Medical Sur…

12
M2M and Iot

12
Ludong University ◀

12

What this shows Ludong holds 12 patents at rank #22,918, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ludong

By rank, the assignees closest to #22,918 in granted patent volume.

Leaders in Y02A (Technologies FOR Adaptation TO Climate Change)

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

Ludong's Innovation Score vs. every tracked assignee

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

49 Top 16% higher than 84% 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 · 2022–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2022–2019 baseline. Full figures in the table below.

View data table

Ludong University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2022	1	8.3%
2023	9	75.0%
2024	2	16.7%

Which technologies does Ludong University patent most?

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 5

G06V - IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING 3

E02B - HYDRAULIC ENGINEERING 3

G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR 3

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

B63B - SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 2

F41F - APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS ; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS 2

F03B - MACHINES OR ENGINES FOR LIQUIDS 2

F05B - INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G 2

G06F - ELECTRIC DIGITAL DATA PROCESSING 1

B63G - OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS 1

F42B - EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION 1

B64G - COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR 1

H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES 1

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 1

Top 15 of 19 technology areas

Where it ranks

Overall rank by patents

#22,922

of 50,000 tracked assignees

Innovation Score

48.8 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

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.