Helmut Zech
7Patents
1h-index
18Co-inventors
44Inventor score
Filing activity: May 18, 2006 → Oct 31, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7847097B2 | Method for production of 1-alkyl-3-phenyluracils | Chemistry; Metallurgy | 14 | Expired |
| US8722893B2 | Process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides | Chemistry; Metallurgy | 1 | Active |
| US8629279B2 | Process for manufacturing 5-formyl-pyridine-2,3-dicarboxylic acid esters | Chemistry; Metallurgy | 1 | Active |
| US8563734B2 | 2-[1-cyanopropyl)carbamoyl]-5-chloromethyl nicotinic acids and the use thereof in manufacturing herbicidal imidazolinones | Chemistry; Metallurgy | 1 | Active |
| US11358922B2 | Process for preparing 4-chlorobenzyl propargyl ether | Chemistry; Metallurgy | 0 | Active |
| US9096570B2 | Process for manufacturing substituted 3-pyridylmethyl ammonium bromides | Chemistry; Metallurgy | 0 | Active |
| US9278977B2 | Process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.