CPC technology class · C10

C10H — Production OF Acetylene BY WET Methods

Production of acetylene by wet methods. 6 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

6
US patents granted
C10
Parent CPC class
1
Active assignees
-33%
5-yr velocity
Top assignee: DAIKIN INDUSTRIES, LTD. (1 patents)

CPC subclass C10H — PRODUCTION OF ACETYLENE BY WET METHODS — covers 6 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records. This subclass sits within the broader CPC class C10 (PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT), one of roughly 250 top-level technology categories in the Cooperative Patent Classification system jointly maintained by the USPTO and the European Patent Office. At the subclass level, four-character codes like C10H give the most practical resolution for tracking a specific technology domain without losing sight of adjacent filings. Every grant here has been classified by a USPTO examiner based on the technical disclosure in the patent specification.

The competitive landscape in C10H is shaped by 1 distinct companies actively filing in this space. DAIKIN INDUSTRIES, LTD. leads with 1 patents. Concentration at the top of the leaderboard indicates whether this technology area is dominated by a handful of incumbents or fragmented across many filers — a useful signal for investors evaluating competitive moats and for product teams mapping freedom-to-operate risk.

Filing trajectory matters as much as static counts. The yearly series on this page plots grants from 2015 through 2025, highlighting whether innovation in C10H is accelerating, plateauing, or cooling. Technology areas with rising post-2020 activity often reflect emerging markets or new platform shifts, while declining filings can signal mature domains where incremental improvement has slowed. Researchers, licensing professionals, and competitive-intelligence teams use these patterns — together with the top-assignee distribution — to decide where to invest, where to license, and where to avoid entanglement. All counts on this page come directly from USPTO PatentsView and reflect US granted utility patents only.

Is C10H innovation accelerating?

US utility-patent grants per year in C10H, 2015–2025 — recent five years are down 33% versus 2015–2019.

0.511.522.5 2016201720232025 1

Who leads C10H?

The 12 most active assignees in PRODUCTION OF ACETYLENE BY WET METHODS — wider bars mean more grants

patents

What this shows Daikin Industries is the most active filer in C10H, holding 1 of the 6 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView — granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass C10H
Rank Company Patents in C10H
#1 CMBLU Energy AG 7

About This Class

CPC subclass C10H belongs to class C10.

6 patents were granted in this class between 2015 and 2025.

1 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

Frequently Asked Questions

What is CPC class C10H?
CPC subclass C10H covers PRODUCTION OF ACETYLENE BY WET METHODS. It belongs to CPC class C10 (PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT). The Cooperative Patent Classification is a hierarchical system used by the USPTO and European Patent Office to categorize patents by technology.
How many patents have been filed in C10H?
6 US utility patents were granted in CPC subclass C10H between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C10H?
DAIKIN INDUSTRIES, LTD. leads C10H with 1 patents, making it the most active assignee in this technology area.
How is patent data for C10H collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., C10) is a broad technology category. Subclasses like C10H provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Learn More

Explore the patent dataset

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