USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Lanzhou Institute OF Chemical Physics, CAS

USPTO PatentsView assignee record - 9 granted patents across 17 technology areas, active 2023–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAP).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

13.1

Avg claims per patent

5-year filing velocity

The verdict

Lanzhou holds 9 US patents across 17 technology areas, rank #29,234 of 50,000 tracked assignees.

#29,234
of 50,000 US assignees by volume: Top 13%
by Innovation Score (50.4/100): 13.1
avg claims per patent

Portfolio overview

Lanzhou Institute OF Chemical Physics, CAS has been granted 9 US utility patents between 2023 and 2025, placing Lanzhou Institute OF Chemical Physics, CAS at rank #29,234 across all assignees tracked by PlainPatent. This portfolio spans 17 distinct Cooperative Patent Classification (CPC) subclasses, averaging 13.1 claims per patent with primary concentration in C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAP). As a Foreign Corporation, Lanzhou Institute OF Chemical Physics, CAS is one of the more focused assignees in the PatentsView dataset. By volume, Lanzhou sits between Lafuma Mobilier SAS (9 patents, rank #29,230) and LCY Chemical Corp. (9 patents, rank #29,238) - the closest US assignees by grant volume. The composite Innovation Score of 50.4/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Historical data spans 2023 through 2025, with 9 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Lanzhou Institute OF Chemical Physics, CAS's 13.1 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 17 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Lanzhou Institute OF Chemical Physics, CAS against peers pursuing similar technology classes.

Lafuma Mobilier S…

9
Lamkin

9
LANG Technik

9
Langenstein & Sch…

9
Laporte Holding

9
Laserssel

9
LC

9
LCY Chemical

9
Lanzhou Institute… ◀

9

What this shows Lanzhou holds 9 patents at rank #29,234, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Lanzhou

By rank, the assignees closest to #29,234 in granted patent volume.

Leaders in C23C (Coating Metallic Material)

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

Lanzhou's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% of 50,000 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

Lanzhou Institute OF Chemical Physics, CAS patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	2	22.2%
2024	3	33.3%
2025	4	44.4%

Which technologies does Lanzhou Institute OF Chemical Physics, CAS patent most?

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 3

C04B - LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE ; CERAMICS ; REFRACTORIES; TREATMENT OF NATURAL STONE 2

H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 2

C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 2

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 2

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 1

C22C - ALLOYS 1

Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT 1

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 1

C09D - COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 1

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C10M - LUBRICATING COMPOSITIONS ; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION 1

D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS 1

B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES 1

Top 15 of 17 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Where it ranks

Overall rank by patents

#29,234

Across all tracked assignees

Innovation Score

50.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Lanzhou Institute OF Chemical Physics, CAS hold?

Lanzhou Institute OF Chemical Physics, CAS holds 9 US granted patents filed between 2023 and 2025, spanning 17 technology areas.

What is Lanzhou Institute OF Chemical Physics, CAS's Innovation Score?

Lanzhou Institute OF Chemical Physics, CAS has an Innovation Score of 50.4 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Lanzhou Institute OF Chemical Physics, CAS focus on?

Lanzhou Institute OF Chemical Physics, CAS's top technology area is C23C (COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL) with 3 patents. The company has filed patents in 17 CPC subclasses total.

Is Lanzhou Institute OF Chemical Physics, CAS's patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Lanzhou Institute OF Chemical Physics, CAS.

What does claim depth mean for Lanzhou Institute OF Chemical Physics, CAS's patents?

Lanzhou Institute OF Chemical Physics, CAS's patents average 13.1 claims each. This falls within the standard range, providing solid legal coverage.

How is the Lanzhou Institute OF Chemical Physics, CAS 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.

How to use this portfolio

Lanzhou's 9 grants land it in the top 13% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Lanzhou ranks #29,234 of 50,000. Top 50 holders
Most of this portfolio concentrates in C23C - see who else leads that technology area. C23C leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team

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.