Where does Tianjin Chengjian University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tianjin Chengjian University ranks #27,649 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 Tianjin Chengjian University hold?

Tianjin Chengjian University holds 10 US utility patents granted between 2023 and 2025, spanning 26 technology areas.

What is Tianjin Chengjian University's Innovation Score?

Tianjin Chengjian University has an Innovation Score of 52.1 out of 100 (top 11% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tianjin Chengjian University focus on?

Tianjin Chengjian University's top technology area is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening) with 4 patents, ranking #244 of 885 assignees active in that subclass. Grants appear in 26 CPC subclasses total.

Is Tianjin Chengjian University's patent grant rate increasing or decreasing?

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

What does claim depth mean for Tianjin Chengjian University's patents?

Tianjin Chengjian University's patents average 9.6 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 Tianjin Chengjian 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

Tianjin Chengjian University

USPTO PatentsView assignee record - 10 granted patents across 26 technology areas, recorded in grant years 2023–2025. 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: F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tianjin ranks #27,649 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 26 technology areas.

#27,649
of 49,997 US assignees by volume: Top 11%
by Innovation Score (52.1/100): 9.6
avg claims per patent

USPTO PatentsView assignee plate

Corpus R27649 · Foreign Corporation #27,649 · 10 grants

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

GRANTS-MICRO 10 grants
MID-PACK #27,649/49,997
PHOTO-FINISH Thermaltake Technology
CPC-FOCUS F24F · 26 areas
INNOV-PAR 52.1/100
CLAIMS-PAR 9.6 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Thermaltake Technology Co., Ltd. (±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 Tianjin’s 52.1 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 8.3 pts (16%) Velocity 20.0 pts (38%) Breadth 18.0 pts (35%) Claim depth 5.8 pts (11%)

Qualcomm Incorporated · highest

85
Tianjin Chengjian… · this assignee

52
3D Lighting… · lowest

7

What this shows Tianjin's Innovation Score is 52.1/100 (top 11% 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 Tianjin?

Each dot is one of Tianjin’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). Tianjin’s own 9.6 claims/patent is at or below the 16.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tianjin's grants concentrate

Tianjin Chengjian University is a focused PatentsView assignee: 26 CPC subclasses with 40% of grants classified under F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening). By volume, Tianjin sits between Thermaltake Technology Co., Ltd. and Tmrw Group IP.

Tianjin's three-year grant acceleration

Tianjin Chengjian University shows 6 grants in 2022–2024 against only 0 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.

Thermaltake Techn…

10
Thomas Helledays…

10
Thought Preserve

10
Thyssenkrupp Syst…

10
Tiense Suikerraff…

10
Tigercat Industri…

10
TLX

10
Tmrw Group IP

10
Tianjin Chengjian… ◀

10

What this shows Tianjin holds 10 patents at rank #27,585, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tianjin

By rank, the assignees closest to #27,585 in granted patent volume.

Leaders in F24F (Air-conditioning)

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

Tianjin's Innovation Score vs. every tracked assignee

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

52 Top 11% higher than 89% 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 · 2023–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Tianjin Chengjian University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	3	30.0%
2024	3	30.0%
2025partial year	4	40.0%

Which technologies does Tianjin Chengjian University patent most?

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening 4

G06V - Image OR Video Recognition OR Understanding 3

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

G10L - Speech Analysis Techniques OR Speech SYNTHESIS; Speech RECOGNITION; Speech OR Voice Processing TECHNIQUES; Speech OR Audio Coding OR Decoding 2

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 2

B09B - Disposal OF Solid Waste NOT Otherwise Provided FOR 1

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 1

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 1

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

C07D - Heterocyclic Compounds 1

H05B - Electric HEATING; Electric Light Sources NOT Otherwise Provided FOR; Circuit Arrangements FOR Electric Light Sources, IN General 1

H04N - Pictorial Communication, e.g. Television 1

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 1

G06F - Electric Digital Data Processing 1

Top 15 of 26 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

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

Tianjin Chengjian University's lead technology class is F24F (AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR Currents FOR Screening), 40% of its portfolio - see every assignee active in that class. Explore F24F
Ranked #27,649 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tianjin Chengjian University against Thermaltake Technology Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 52.1/100 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.