CPC technology class · C01
C01P — Indexing Scheme Relating TO Structural AND Physical Aspec…
Indexing scheme relating to structural and physical aspects of solid inorganic compounds. 12,347 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.
- 12,347
- US patents granted
- C01
- Parent CPC class
- 20
- Active assignees
- +58%
- 5-yr velocity
CPC subclass C01P — INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS — covers 12,347 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records. This subclass sits within the broader CPC class C01 (INORGANIC CHEMISTRY), 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 C01P 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 C01P is shaped by 20 distinct companies actively filing in this space. SAMSUNG ELECTRONICS CO., LTD. leads with 369 patents, followed by OMYA INTERNATIONAL AG at 273 grants and LG ENERGY SOLUTION, LTD. at 2,270. 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 C01P 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 C01P innovation accelerating?
US utility-patent grants per year in C01P, 2015–2025 — recent five years are up 58% versus 2015–2019.
Who leads C01P?
The 12 most active assignees in INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS — wider bars mean more grants
- Sumitomo Metal Mining 511
SUMITOMO METAL MINING CO., LTD.
511 patents
- Omya International 273
OMYA INTERNATIONAL AG
273 patents
- Lg Energy Solution
LG ENERGY SOLUTION, LTD.
2,270 patents
- Sumitomo Chemical
SUMITOMO CHEMICAL COMPANY, LIMITED
1,758 patents
- Ngk Insulators
NGK INSULATORS, LTD.
1,631 patents
- King Fahd University…
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
2,002 patents
- Umicore 138
UMICORE
138 patents
- Nichia
NICHIA CORPORATION
2,544 patents
- Chevron U
CHEVRON U.S.A. INC.
1,194 patents
- Rhodia Operations 484
RHODIA OPERATIONS
484 patents
- Mitsui Mining & Smelt… 254
MITSUI MINING & SMELTING CO., LTD.
254 patents
- Umicore Korea 61
UMICORE KOREA LTD.
61 patents
What this shows Samsung is the most active filer in C01P, holding 369 of the 12,347 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.
View data table
| Rank | Company | Patents in C01P |
|---|---|---|
| #1 | SUMITOMO METAL MINING CO., LTD. | 511 |
| #2 | OMYA INTERNATIONAL AG | 273 |
| #3 | LG ENERGY SOLUTION, LTD. | 2,270 |
| #4 | SUMITOMO CHEMICAL COMPANY, LIMITED | 1,758 |
| #5 | NGK INSULATORS, LTD. | 1,631 |
| #6 | KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS | 2,002 |
| #7 | UMICORE | 138 |
| #8 | NICHIA CORPORATION | 2,544 |
| #9 | CHEVRON U.S.A. INC. | 1,194 |
| #10 | RHODIA OPERATIONS | 484 |
| #11 | MITSUI MINING & SMELTING CO., LTD. | 254 |
| #12 | UMICORE KOREA LTD. | 61 |
| #13 | Cabot Corporation | 125 |
| #14 | National Institute of Advanced Industrial Science and Technology | 822 |
| #15 | King Abdullah University of Science and Technology | 669 |
| #16 | ECOPRO BM CO., LTD. | 48 |
| #17 | Imam Abdulrahman Bin Faisal University | 403 |
| #18 | TOKUYAMA CORPORATION | 202 |
| #19 | ECKART GmbH | 48 |
| #20 | CHINA PETROLEUM & CHEMICAL CORPORATION | 500 |
About This Class
CPC subclass C01P belongs to class C01.
12,347 patents were granted in this class between 2015 and 2025.
20 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 C01P?
How many patents have been filed in C01P?
Which company holds the most patents in C01P?
How is patent data for C01P collected?
What is the difference between CPC class and subclass?
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Explore the patent dataset
Read our methodology — how this data is sourced, computed, and verified.