Is Institute of Engineering Thermophysics, Chinese Academy of Sciences's patent grant rate increasing or decreasing?

Institute of Engineering Thermophysics, Chinese Academy of Sciences's recent grant velocity is -67% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Institute of Engineering Thermophysics, Chinese Academy of Sciences

Q: Where does Institute of Engineering Thermophysics, Chinese Academy of Sciences rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Institute of Engineering Thermophysics, Chinese Academy of Sciences ranks #16,888 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: How is the Institute of Engineering Thermophysics, Chinese Academy of Sciences 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 PatentsView assignee record - 17 granted patents across 28 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: F23C (Methods OR Apparatus FOR Combustion Using Fluid Fuel OR Solid Fuel Suspended IN ; A Carrier GAS OR; AIR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Institute ranks #16,888 of 49,997 tracked US assignees by granted-patent volume, with 17 patents across 28 technology areas.

#16,888
of 49,997 US assignees by volume: Top 28%
by Innovation Score (43.3/100): 13.2
avg claims per patent: -67%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R16888 · Foreign Corporation #16,888 · 17 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 17 grants
MID-PACK #16,888/49,997
PHOTO-FINISH Imaging Systems…
CPC-FOCUS F23C · 28 areas
INNOV-PAR 43.3/100
CLAIMS-RICH 13.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -67% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Imaging Systems Technology, 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.

How Institute’s 43.3 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 10.0 pts (23%) Velocity 6.7 pts (15%) Breadth 18.7 pts (43%) Claim depth 7.9 pts (18%)

Qualcomm Incorporated · highest

85
Institute of… · this assignee

43
3D Lighting… · lowest

7

What this shows Institute's Innovation Score is 43.3/100 (top 28% 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 Institute?

Each dot is one of Institute’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). Institute’s own 13.2 claims/patent is ABOVE the 10.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Institute's grants concentrate

Institute of Engineering Thermophysics, Chinese Academy of Sciences is a focused PatentsView assignee: 28 CPC subclasses with 47.1% of grants classified under F23C (Methods OR Apparatus FOR Combustion Using Fluid Fuel OR Solid Fuel Suspended IN ; A Carrier GAS OR; AIR). Peak complete grant year is 2016 (5 grants) versus a trough of 1 in 2015. By volume, Institute sits between Imaging Systems Technology, Inc. and Intelligent Wellhead Systems Inc..

Institute's three-year grant acceleration

Institute of Engineering Thermophysics, Chinese Academy of Sciences shows 3 grants in 2022–2024 against only 3 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.

Imaging Systems T…

17
Impact Sports

17
Infinite Peripher…

17
Innophos

17
Instrumental

17
Intabio

17
Intellicyt

17
Intelligent Wellh…

17
Institute of Engi… ◀

17

What this shows Institute holds 17 patents at rank #16,894, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Institute

By rank, the assignees closest to #16,894 in granted patent volume.

Leaders in F23C (Methods OR Apparatus FOR Combustion Using Fluid Fuel OR S…)

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

Institute's Innovation Score vs. every tracked assignee

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

43 Top 28% higher than 72% 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

Institute of Engineering Thermophysics, Chinese Academy of Sciences patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	5.9%
2016	5	29.4%
2017	3	17.6%
2018	1	5.9%
2019	2	11.8%
2021	1	5.9%
2022	2	11.8%
2024	1	5.9%
2025partial year	1	5.9%

Which technologies does Institute of Engineering Thermophysics, Chinese Academy of Sciences patent most?

F23C - Methods OR Apparatus FOR Combustion Using Fluid Fuel OR Solid Fuel Suspended IN ; A Carrier GAS OR; AIR 8

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 7

F22B - Methods OF Steam GENERATION; Steam Boilers 6

F03G - Spring, Weight, Inertia OR Like MOTORS; Mechanical-power Producing Devices OR Mechanisms, NOT Otherwise Provided FOR OR Using Energy Sources NOT Otherwise Provided FOR 3

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 3

F01K - Steam Engine PLANTS; Steam ACCUMULATORS; Engine Plants NOT Otherwise Provided FOR; Engines Using Special Working Fluids OR Cycles 3

G01L - Measuring Force, Stress, Torque, Work, Mechanical Power, Mechanical Efficiency, OR Fluid Pressure 2

F23L - Supplying AIR OR Non-combustible Liquids OR Gases TO Combustion Apparatus IN General ; Valves OR Dampers Specially Adapted FOR Controlling AIR Supply OR Draught IN Combustion Apparatus ; Inducing Draught IN Combustion APPARATUS; Tops FOR Chimneys OR Ventilating SHAFTS; Terminals FOR Flues 2

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 2

F25J - Liquefaction, Solidification OR Separation OF Gases OR Gaseous ; OR Liquefied GASEOUS; Mixtures BY Pressure AND Cold Treatment ; OR BY Bringing Them Into THE Supercritical State 2

F02C - Gas-turbine PLANTS; AIR Intakes FOR Jet-propulsion PLANTS; Controlling Fuel Supply IN Air-breathing Jet-propulsion Plants 2

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

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

F23J - Removal OR Treatment OF Combustion Products OR Combustion RESIDUES; Flues 1

F25B - Refrigeration Machines, Plants OR SYSTEMS; Combined Heating AND Refrigeration SYSTEMS; Heat Pump Systems 1

Top 15 of 28 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

Institute of Engineering Thermophysics, Chinese Academy of Sciences's patent record in context - here's where to go next.

Institute of Engineering Thermophysics, Chinese Academy of Sciences's lead technology class is F23C (Methods OR Apparatus FOR Combustion Using Fluid Fuel OR Solid Fuel Suspended IN ; A Carrier GAS OR; AIR), 47.1% of its portfolio - see every assignee active in that class. Explore F23C
Ranked #16,888 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Institute of Engineering Thermophysics, Chinese Academy of Sciences against Imaging Systems Technology, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.3/100 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.