C09B 62/002 with the linkage of the reactive group being alternatively specified
Full Title
Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves > with the linkage of the reactive group being alternatively specified
Filing statistics
CPC C09B 62/002 belongs to the parent subclass C09B, which recorded 29,807 patent applications worldwide between 2013 and 2023. Annual filings declined from 3,030 in 2013 to 1,785 in 2023 (-41%), peaking at 3,329 applications in 2017. The most active applicants in class C09 are LG CHEM (7,954 applications), HALLIBURTON ENERGY SERVICES GROUP (6,584 applications) and NITTO DENKO CORPORATION (6,500 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- C09B 62/004 Anthracene dyes
- C09B 62/006 Azodyes
- C09B 62/014 Nitro dyes
- C09B 62/016 Porphines; Azaporphines
- C09B 62/018 Formazane dyes
Top Applicants
Top 10 applicants by patent filingsfor class C09, 2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 7,954
- HALLIBURTON ENERGY SERVICES GROUP US 6,584
- NITTO DENKO CORPORATION JP 6,500
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,490
- DOW GLOBAL TECHNOLOGIES US 6,324
- FUJIFILM JP 5,832
- MERCK PATENT DE 5,481
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 5,147
- SAMSUNG DISPLAY KR 5,105
- NITTO DENKO CORPORATION 3,584