Inventor · disambiguated record
Ernst Pfleiderer
Also filed as: PFLEIDERER ERNST
32 granted patents·510 citations·filing 1974–1993
98Inventor score
Top patents by PatentIndex Score
32 records- 0192US3986926AMethod for preparing tannable pelts from animal skins and hidesROEHM GMBH·Filed 1974·Granted Oct 19, 1976·37 cites·6 claims
- 0290US4314800AMethod for treating pelts and leatherROEHM GMBH·Filed 1981·Granted Feb 9, 1982·43 cites·20 claims
- 0388US4220724AMethod for treating raw materials containing collagenROEHM GMBH·Filed 1979·Granted Sep 2, 1980·31 cites·6 claims
- 0487US3939040AEnzymatic bating methodROEHM GMBH·Filed 1974·Granted Feb 17, 1976·27 cites·2 claims
- 0585US4179333AMethod for making water-soluble elastin hydrolyzatesFREUDENBERG CARL FA·Filed 1978·Granted Dec 18, 1979·22 cites·7 claims
- 0678US4636222AEnzymatic unhairing methodROEHM GMBH·Filed 1985·Granted Jan 13, 1987·24 cites·8 claims
- 0777US4294087AEnzymatic method for hair recovery with concurrent opening of hide structureROEHM GMBH·Filed 1980·Granted Oct 13, 1981·20 cites·13 claims
- 0876US4484924AProcess for producing unhaired, storable hides and skinsROEHM GMBH·Filed 1983·Granted Nov 27, 1984·20 cites·14 claims
- 0976US4220723AEnzymatic treatment of proteinaceous animal waste productsROEHM GMBH·Filed 1978·Granted Sep 2, 1980·32 cites·10 claims
- 1074US3966551AMethod for preparing tannable pelts from animal skins and hidesROEHM GMBH·Filed 1975·Granted Jun 29, 1976·15 cites·3 claims
- 1171US4943530ALiquid enzyme preparationsROEHM GMBH·Filed 1989·Granted Jul 24, 1990·27 cites·6 claims
- 1269US5102422AMethods for leather processing including liquid enzyme formulationROEHM GMBH·Filed 1988·Granted Apr 7, 1992·24 cites·6 claims
- 1369US4960428AMethod for liming skins and hidesROEHM GMBH·Filed 1989·Granted Oct 2, 1990·17 cites·21 claims
- 1467US4273876AEnzymatic bating methodROEHM GMBH·Filed 1979·Granted Jun 16, 1981·10 cites·1 claims
- 1565US4232123AMethod for making water-soluble hydrolyzates of keratinaceous materialsFREUDENBERG CARL FA·Filed 1979·Granted Nov 4, 1980·16 cites·8 claims
- 1664US4968621AMethod for the wet degreasing of hide and skin stockROEHM GMBH·Filed 1989·Granted Nov 6, 1990·13 cites·14 claims
- 1763US4293647AMethod of dissolving collagen-containing tissuesROEHM GMBH·Filed 1978·Granted Oct 6, 1981·18 cites·11 claims
- 1862US4961750AAcrylate tanning agentROEHM GMBH·Filed 1988·Granted Oct 9, 1990·14 cites·14 claims
- 1962US4443221ATanning methodROEHM GMBH·Filed 1982·Granted Apr 17, 1984·10 cites·16 claims
- 2059US4314801ASoaking methodROEHM GMBH·Filed 1980·Granted Feb 9, 1982·9 cites·11 claims
- 2159US4278432ASoaking methodROEHM GMBH·Filed 1980·Granted Jul 14, 1981·9 cites·4 claims
- 2258US4398911ATanning methodROEHM GMBH·Filed 1982·Granted Aug 16, 1983·8 cites·5 claims
- 2354US4310328AProcess for liming pelts of animal hides and skinsROEHM GMBH·Filed 1980·Granted Jan 12, 1982·6 cites·6 claims
- 2451US4344762ASoaking methodROEHM GMBH·Filed 1980·Granted Aug 17, 1982·6 cites·14 claims
- 2549US5089414AEnzymatic soaking methodROEHM GMBH·Filed 1990·Granted Feb 18, 1992·7 cites·4 claims
- 2649US4889811AMethods for making leatherROEHM GMBH·Filed 1986·Granted Dec 26, 1989·8 cites·16 claims
- 2744US5792265ADevice and process for producing reinforcing layers on cylinder running surfaces of internal combustion engines and the likeMAHLE GMBH·Filed 1993·Granted Aug 11, 1998·8 cites·13 claims
- 2844US5295583AProcess for cleaning short mineral fibersMAHLE GMBH·Filed 1992·Granted Mar 22, 1994·12 cites·14 claims
- 2939US4351639AProcess for liming pelts of animal hides and skinsROEHM GMBH·Filed 1981·Granted Sep 28, 1982·2 cites·11 claims
- 3037US4436624ACRT Method of converting and separating substances contained, dissolved or dissolvable in a carrier liquidUNIVERSAL UMWELTTECHNIK·Filed 1981·Granted Mar 13, 1984·9 cites·4 claims
- 3135US4210721AMethod for dissolving collagen-containing skin tissuesMONSHEIMER ROLF·Filed 1977·Granted Jul 1, 1980·6 cites·13 claims
- 3232US4105402ATreatment of sulfide-limed pelts in acid bathsROEHM GMBH·Filed 1977·Granted Aug 8, 1978·0 cites·9 claims
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