Where does Tongji University rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tongji University ranks #2,050 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 Tongji University hold?

Tongji University holds 194 US utility patents granted between 2015 and 2025, spanning 126 technology areas.

What is Tongji University's Innovation Score?

Tongji University has an Innovation Score of 69.1 out of 100 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tongji University focus on?

Tongji University's top technology area is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge) with 54 patents, ranking #9 of 1,366 assignees active in that subclass. Grants appear in 126 CPC subclasses total.

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

Tongji University's recent grant velocity is +415% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

Tongji University's patents average 9.8 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 Tongji 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

Tongji University

USPTO PatentsView assignee record - 194 granted patents across 126 technology areas, recorded in grant years 2015–2025. 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: C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Tongji ranks #2,050 of 49,997 tracked US assignees by granted-patent volume, with 194 patents across 126 technology areas.

#2,050
of 49,997 US assignees by volume: Top 1%
by Innovation Score (69.1/100): 9.8
avg claims per patent: +415%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R2050 · Foreign Corporation #2,050 · 194 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 194 grants
TOP-DECILE #2,050/49,997
PHOTO-FINISH Konami Digital…
CPC-WIDE C02F · 126 areas
INNOV-STRONG 69.1/100
CLAIMS-PAR 9.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +415% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Konami Digital Entertainment 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 Tongji’s 69.1 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 18.2 pts (26%) Velocity 20.0 pts (29%) Breadth 25.0 pts (36%) Claim depth 5.9 pts (9%)

Qualcomm Incorporated · highest

85
Covestro Intellectua… · near

69
Itron · near

69
Smith & Nephew… · near

69
Tongji University · this assignee

69
Intrinsic Innovation · near

69
3D Lighting… · lowest

7

What this shows Tongji's Innovation Score is 69.1/100 (top 1% 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 Tongji?

Each dot is one of Tongji’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). Tongji’s own 9.8 claims/patent is at or below the 15.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Tongji's grant cadence moved

Between 2020–2024, Tongji University received 139 grants versus 27 in 2015–2019 (+415% equal-window velocity, top decile growth). Across complete PatentsView years, output peaked in 2024 at 47 grants and bottomed in 2015 at 3. Lead class C02F accounts for 27.8% of the portfolio across 126 subclasses. Volume neighbours: Konami Digital Entertainment Co., Ltd. (#2,045) and Baoshan Iron & Steel Co., Ltd. (#2,053).

Tongji's three-year grant acceleration

From 2019–2021 to 2022–2024, Tongji University moved from 31 to 115 grants (3.71x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #56. See the growth leaderboard.

Konami Digital En…

194
Proofpoint

194
Siemens Schweiz

194
Telecommunication…

194
Tivo

194
Trimble Navigation

194
Tongji University ◀

194
Afton Chemical

193
Baoshan Iron & St…

193

What this shows Tongji holds 194 patents at rank #2,049, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tongji

By rank, the assignees closest to #2,049 in granted patent volume.

Leaders in C02F (Treatment OF Water)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tongji, neither rank-band nor same-CPC leaders (those blocks stay above). In C02F (Treatment OF Water), Tongji ranks #9 of 1,366 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (69 here).

Smith & Nephew Orthopaedics AG 69 Itron, Inc. 69 Intrinsic Innovation LLC 69 Covestro Intellectual Property GmbH & Co. KG 69

Similar claim depth

Nearest assignees by average claims per patent (9.8 here).

Inspire Medical Systems, Inc. 9.8 avg Hitachi Industrial Equipment Systems Co., Ltd. 9.8 avg Denka Company Limited 9.8 avg CCL Label, Inc. 9.8 avg

Tongji's Innovation Score vs. every tracked assignee

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

69 Top 1% higher than 99% 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 · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Tongji University patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	1.5%
2016	8	4.1%
2017	4	2.1%
2018	5	2.6%
2019	7	3.6%
2020	11	5.7%
2021	13	6.7%
2022	27	13.9%
2023	41	21.1%
2024	47	24.2%
2025partial year	28	14.4%

Which technologies does Tongji University patent most?

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 54

B01D - Separation 25

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 22

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 22

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 21

Y02T - Climate Change Mitigation Technologies Related TO Transportation 20

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 15

G06F - Electric Digital Data Processing 14

H04N - Pictorial Communication, e.g. Television 13

B60W - Conjoint Control OF Vehicle Sub-units OF Different Type OR Different FUNCTION; Control Systems Specially Adapted FOR Hybrid VEHICLES; Road Vehicle Drive Control Systems FOR Purposes NOT Related TO THE Control OF A Particular Sub-unit 11

G06N - Computing Arrangements Based ON Specific Computational Models 10

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 9

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 8

G05B - Control OR Regulating Systems IN GENERAL; Functional Elements OF Such SYSTEMS; Monitoring OR Testing Arrangements FOR Such Systems OR Elements 8

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 7

Top 15 of 126 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

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

Tongji University's lead technology class is C02F (Treatment OF Water, Waste Water, Sewage, OR Sludge), 27.8% of its portfolio - see every assignee active in that class. Explore C02F
Ranked #2,050 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tongji University against Konami Digital Entertainment Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 69.1/100 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.