Where does Tiangong University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tiangong University ranks #21,911 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 Tiangong University hold?

Tiangong University holds 13 US utility patents granted between 2021 and 2025, spanning 19 technology areas.

What is Tiangong University's Innovation Score?

Tiangong University has an Innovation Score of 49.1 out of 100 (top 15% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tiangong University focus on?

Tiangong University's top technology area is B01D (Separation) with 4 patents, ranking #1,134 of 3,536 assignees active in that subclass. Grants appear in 19 CPC subclasses total.

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

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

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

Tiangong University's patents average 7.7 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 Tiangong 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

Tiangong University

USPTO PatentsView assignee record - 13 granted patents across 19 technology areas, recorded in grant years 2021–2025. 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tiangong ranks #21,911 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 19 technology areas.

#21,911
of 49,997 US assignees by volume: Top 15%
by Innovation Score (49.1/100): 7.7
avg claims per patent

USPTO PatentsView assignee plate

Corpus R21911 · Foreign Corporation #21,911 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #21,911/49,997
PHOTO-FINISH Thermo Fisher…
CPC-FOCUS B01D · 19 areas
INNOV-PAR 49.1/100
CLAIMS-SPARSE 7.7 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2021–2025 · 5y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Thermo Fisher Scientific Messtechnik GmbH (±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 Tiangong’s 49.1 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 9.1 pts (19%) Velocity 20.0 pts (41%) Breadth 15.4 pts (31%) Claim depth 4.6 pts (9%)

Qualcomm Incorporated · highest

85
Tiangong University · this assignee

49
3D Lighting… · lowest

7

What this shows Tiangong's Innovation Score is 49.1/100 (top 15% 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 Tiangong?

Each dot is one of Tiangong’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). Tiangong’s own 7.7 claims/patent is at or below the 16.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tiangong's grants concentrate

Tiangong University is a focused PatentsView assignee: 19 CPC subclasses with 30.8% of grants classified under B01D (Separation). Peak complete grant year is 2022 (4 grants) versus a trough of 1 in 2021. By volume, Tiangong sits between Thermo Fisher Scientific Messtechnik GmbH and Topseat International, Inc..

Tiangong's three-year grant acceleration

Tiangong University shows 11 grants in 2022–2024 against only 1 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.

Thermo Fisher Sci…

13
Think Therapeutics

13
Thinoptics

13
Thomas Engineerin…

13
Tokyo Keiki

13
Tomahawk Robotics

13
Top Flight

13
Topseat Internati…

13
Tiangong Universi… ◀

13

What this shows Tiangong holds 13 patents at rank #21,939, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tiangong

By rank, the assignees closest to #21,939 in granted patent volume.

Leaders in B01D (Separation)

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

Tiangong's Innovation Score vs. every tracked assignee

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

49 Top 15% higher than 85% 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 · 2021–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2021–2019 baseline. Full figures in the table below.

View data table

Tiangong University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2021	1	7.7%
2022	4	30.8%
2023	3	23.1%
2024	4	30.8%
2025partial year	1	7.7%

Which technologies does Tiangong University patent most?

B01D - Separation 4

H02K - Dynamo-electric Machines 4

Y02A - Technologies FOR Adaptation TO Climate Change 2

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 2

A61B - DIAGNOSIS; SURGERY; Identification 2

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 2

H02N - Electric Machines NOT Otherwise Provided FOR 2

H02P - Control OR Regulation OF Electric Motors, Electric Generators OR Dynamo-electric CONVERTERS; Controlling Transformers, Reactors OR Choke Coils 2

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 1

D06M - Treatment, NOT Provided FOR Elsewhere IN Class D06, OF Fibres, Threads, Yarns, Fabrics, Feathers OR Fibrous Goods Made From Such Materials 1

D01D - Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons 1

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 1

D01F - Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

G02B - Optical Elements, Systems OR Apparatus 1

Top 15 of 19 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

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

Tiangong University's lead technology class is B01D (Separation), 30.8% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #21,911 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tiangong University against Thermo Fisher Scientific Messtechnik GmbH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 49.1/100 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.