Inventor
SCHAEFER HANS
26 patents
⚠️ This page may combine multiple inventors who share the name “SCHAEFER HANS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DEGUSSA
7 patentsUS4221772ASep 9, 1980
Carbon black for lacquers and pigments
DEGUSSA30 citations91
US4378995AApr 5, 1983
Iron blue pigment, process for making the same and use
DEGUSSA45 citations90
US4366138ADec 28, 1982
Carbon black useful for pigment for black lacquers
DEGUSSA18 citations71
US3960766AJun 1, 1976
Catalyst for the production of pyridine and 3-methylpyridine
DEGUSSA9 citations71
US4853190AAug 1, 1989
Process & apparatus for the production of hydrogen cyanide
DEGUSSA7 citations67
US4594234AJun 10, 1986
Process and apparatus for the production of hydrogen cyanide
DEGUSSA5 citations60
US4368075AJan 11, 1983
Iron blue pigment, process for making the same and use
DEGUSSA0 citations49
HOECHST AG
4 patentsUS4377395AMar 22, 1983
Process and apparatus for gassing liquids
HOECHST AG7 citations74
US4370151AJan 25, 1983
Process and apparatus for gassing liquids
HOECHST AG12 citations74
US4353717AOct 12, 1982
Process for absorbing ozone
HOECHST AG12 citations71
US5367096ANov 22, 1994
Process for the preparation of 2,5-di(phenylamino)terephthalic acid and dialkyl esters thereof in high purity
HOECHST AG10 citations67
HOLZMANN PHILIPP AG
4 patentsUS5018639AMay 28, 1991
Storage container for low-temperature liquids
HOLZMANN PHILIPP AG9 citations73
US4492087AJan 8, 1985
Container for storing refrigerated liquids
HOLZMANN PHILIPP AG7 citations65
US4434591AMar 6, 1984
Component useful in producing a cooling tower
HOLZMANN PHILIPP AG0 citations48
US4255366AMar 10, 1981
Process of producing a cooling tower
HOLZMANN PHILIPP AG1 citations48