Inventor · disambiguated record
Willi Ripperger
Also filed as: RIPPERGER WILLI
5 granted patents·51 citations·filing 1974–2005
78Inventor score
Top patents by PatentIndex Score
5 records- 0180US7153962B1Process for gently cooling and crystallizing melamine from a melamine melt or from the gaseous phaseCASALE CHEMICALS SA·Filed 2005·Granted Dec 26, 2006·4 cites·7 claims
- 0265US4567294APreparation of ammonium carbamateBASF AG·Filed 1984·Granted Jan 28, 1986·16 cites·4 claims
- 0365US3960768AProduction of carbon by eliminating hydrogen halide from polymerized halohydrocarbonsSIRMAC LTD·Filed 1974·Granted Jun 1, 1976·22 cites·6 claims
- 0448US4009125ASpherical refining catalyst and process for its manufactureBASF AG·Filed 1975·Granted Feb 22, 1977·9 cites·5 claims
- 0542US6858730B2Process for the production of high purity melamine from ureaCASALE CHEMICALS SA·Filed 2001·Granted Feb 22, 2005·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →