P

Inventor

PFLEIDERER ERNST

32 patents
⚠️ This page may combine multiple inventors who share the name “PFLEIDERER ERNST”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ROEHM GMBH

26 patents
US4314800AFeb 9, 1982

Method for treating pelts and leather

ROEHM GMBH43 citations92
US4220724ASep 2, 1980

Method for treating raw materials containing collagen

ROEHM GMBH31 citations92
US4220723ASep 2, 1980

Enzymatic treatment of proteinaceous animal waste products

ROEHM GMBH32 citations92
US3986926AOct 19, 1976

Method for preparing tannable pelts from animal skins and hides

ROEHM GMBH37 citations92
US5102422AApr 7, 1992

Methods for leather processing including liquid enzyme formulation

ROEHM GMBH24 citations90
US4943530AJul 24, 1990

Liquid enzyme preparations

ROEHM GMBH27 citations90
US4484924ANov 27, 1984

Process for producing unhaired, storable hides and skins

ROEHM GMBH20 citations82
US4294087AOct 13, 1981

Enzymatic method for hair recovery with concurrent opening of hide structure

ROEHM GMBH20 citations82
US4293647AOct 6, 1981

Method of dissolving collagen-containing tissues

ROEHM GMBH18 citations82
US3939040AFeb 17, 1976

Enzymatic bating method

ROEHM GMBH27 citations82
US4636222AJan 13, 1987

Enzymatic unhairing method

ROEHM GMBH24 citations81
US4314801AFeb 9, 1982

Soaking method

ROEHM GMBH9 citations74
US4310328AJan 12, 1982

Process for liming pelts of animal hides and skins

ROEHM GMBH6 citations74
US4278432AJul 14, 1981

Soaking method

ROEHM GMBH9 citations74
US4273876AJun 16, 1981

Enzymatic bating method

ROEHM GMBH10 citations74
US3966551AJun 29, 1976

Method for preparing tannable pelts from animal skins and hides

ROEHM GMBH15 citations74
US5089414AFeb 18, 1992

Enzymatic soaking method

ROEHM GMBH7 citations73
US4968621ANov 6, 1990

Method for the wet degreasing of hide and skin stock

ROEHM GMBH13 citations73
US4961750AOct 9, 1990

Acrylate tanning agent

ROEHM GMBH14 citations73
US4960428AOct 2, 1990

Method for liming skins and hides

ROEHM GMBH17 citations73
US4443221AApr 17, 1984

Tanning method

ROEHM GMBH10 citations71
US4398911AAug 16, 1983

Tanning method

ROEHM GMBH8 citations71
US4889811ADec 26, 1989

Methods for making leather

ROEHM GMBH8 citations68
US4351639ASep 28, 1982

Process for liming pelts of animal hides and skins

ROEHM GMBH2 citations63
US4344762AAug 17, 1982

Soaking method

ROEHM GMBH6 citations63
US4105402AAug 8, 1978

Treatment of sulfide-limed pelts in acid baths

ROEHM GMBH0 citations52

FREUDENBERG CARL FA

2 patents

MAHLE GMBH

2 patents

UNIVERSAL UMWELTTECHNIK

1 patent

MONSHEIMER ROLF

1 patent