Inventor · Darmstadt, DE

Armin Osan

8Patents
1h-index
8Co-inventors
36Inventor score

Filing activity: Feb 15, 2013 → Aug 12, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US8784505B2 1-hexzl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions Chemistry; Metallurgy 1 Active
US9060953B2 1-hexyl-1H-pyrazole-4,5-diamine hemisulfate, and its use in dyeing compositions Chemistry; Metallurgy 0 Active
US9587116B2 Azo direct dyes and method for dyeing hair using these dyes Chemistry; Metallurgy 0 Active
US9688609B2 Telescoping synthesis of 2-methoxymethyl-P-phenylenediamine Emerging Cross-Sectional Technologies 0 Active
US9695109B2 Telescoping synthesis of 2-methoxymethyl-p-phenylenediamine Emerging Cross-Sectional Technologies 0 Active
US8785656B2 Telescoping synthesis of 5-amino-4-nitroso-1-alkyl-1H-pyrazole salt Chemistry; Metallurgy 0 Active
US12122734B2 Telescoping syntheses of 2-methoxymethyl-p-phenylenediamine Chemistry; Metallurgy 0 Active
US9758469B2 Process for the preparation of 2-substituted-1,4-benzenediamines and salts thereof Chemistry; Metallurgy 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.