Where does Changzhou Institute OF Technology rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Changzhou Institute OF Technology ranks #28,386 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 Changzhou Institute OF Technology hold?

Changzhou Institute OF Technology holds 9 US utility patents granted between 2023 and 2025, spanning 13 technology areas.

What is Changzhou Institute OF Technology's Innovation Score?

Changzhou Institute OF Technology has an Innovation Score of 46.9 out of 100 (top 20% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Changzhou Institute OF Technology's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Changzhou Institute OF Technology.

What does claim depth mean for Changzhou Institute OF Technology's patents?

Changzhou Institute OF Technology's patents average 10.3 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 Changzhou Institute OF Technology 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 Government

Changzhou Institute OF Technology

Q: What technology areas does Changzhou Institute OF Technology focus on?

Changzhou Institute OF Technology's top technology area is C25B (Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor) with 3 patents, ranking #123 of 382 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

USPTO PatentsView assignee record - 9 granted patents across 13 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: C25B (Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Changzhou ranks #28,386 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 13 technology areas.

#28,386
of 49,997 US assignees by volume: Top 20%
by Innovation Score (46.9/100): 10.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R28386 · Foreign Government #28,386 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #28,386/49,997
PHOTO-FINISH Cevec Pharmaceuticals
CPC-FOCUS C25B · 13 areas
INNOV-PAR 46.9/100
CLAIMS-PAR 10.3 claims/avg
TYPE-FRNGOV Foreign Gov
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Cevec Pharmaceuticals 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 Changzhou’s 46.9 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 8.0 pts (17%) Velocity 20.0 pts (43%) Breadth 12.7 pts (27%) Claim depth 6.2 pts (13%)

Qualcomm Incorporated · highest

85
Changzhou Institute… · this assignee

47
3D Lighting… · lowest

7

What this shows Changzhou's Innovation Score is 46.9/100 (top 20% 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 Changzhou?

Each dot is one of Changzhou’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). Changzhou’s own 10.3 claims/patent is ABOVE the 8.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Changzhou's grants concentrate

Changzhou Institute OF Technology is a focused PatentsView assignee: 13 CPC subclasses with 33.3% of grants classified under C25B (Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor). Peak complete grant year is 2024 (3 grants) versus a trough of 1 in 2023. By volume, Changzhou sits between Cevec Pharmaceuticals GmbH and Chaossearch, Inc..

Changzhou's three-year grant acceleration

Changzhou Institute OF Technology shows 4 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.

Cevec Pharmaceuti…

9
Chameleon Holding

9
Chang Gung Biotec…

9
Changzhou Canbo T…

9
Changzhou Shine S…

9
Channel Well Tech…

9
Chaologix

9
Chaossearch

9
Changzhou Institu… ◀

9

What this shows Changzhou holds 9 patents at rank #28,351, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Changzhou

By rank, the assignees closest to #28,351 in granted patent volume.

Leaders in C25B (Electrolytic OR Electrophoretic Processes FOR THE Product…)

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

Changzhou's Innovation Score vs. every tracked assignee

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

47 Top 20% higher than 80% 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

Changzhou Institute OF Technology patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	1	11.1%
2024	3	33.3%
2025partial year	5	55.6%

Which technologies does Changzhou Institute OF Technology patent most?

C25B - Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor 3

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 3

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 2

B01D - Separation 1

B09B - Disposal OF Solid Waste NOT Otherwise Provided FOR 1

B25J - MANIPULATORS; Chambers Provided With Manipulation Devices 1

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 1

F27B - Furnaces, Kilns, Ovens OR Retorts IN GENERAL; Open Sintering OR Like Apparatus 1

C04B - Lime, MAGNESIA; SLAG; CEMENTS; Compositions Thereof, e.g. Mortars, Concrete OR Like Building MATERIALS; Artificial Stone ; Ceramics ; REFRACTORIES; Treatment OF Natural Stone 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

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 1

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 1

Top 13 of 13 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

Changzhou Institute OF Technology's patent record in context - here's where to go next.

Changzhou Institute OF Technology's lead technology class is C25B (Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor), 33.3% of its portfolio - see every assignee active in that class. Explore C25B
Ranked #28,386 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Changzhou Institute OF Technology against Cevec Pharmaceuticals GmbH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.9/100 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.