Inventor
SCHROEDER HOBE
23 patents
⚠️ This page may combine multiple inventors who share the name “SCHROEDER HOBE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMOCO CORP
11 patentsUS4892972AJan 9, 1990
Purification of crude terephthalic acid
AMOCO CORP101 citations96
US4833269AMay 23, 1989
Method for purifying terephthalic acid recycle streams
AMOCO CORP85 citations96
US4743577AMay 10, 1988
Catalyst composition
AMOCO CORP59 citations95
US5362908ANov 8, 1994
Catalyst and method for purifying crude terephthalic acid, isophthalic acid or naphthalene dicarboxylic acid
AMOCO CORP51 citations92
US5354898AOct 11, 1994
Method for purifying crude aromatic carboxylic acids
AMOCO CORP45 citations92
US4933492AJun 12, 1990
Purification of crude isophthalic acid
AMOCO CORP23 citations92
US4629715ADec 16, 1986
Purification of terephthalic acid to relatively low levels of 4-carboxybenzaldehyde and catalyst therefor
AMOCO CORP37 citations92
US4933491AJun 12, 1990
Method for purifying a crude naphthalene dicarboxylic acid
AMOCO CORP37 citations91
US4937378AJun 26, 1990
Purification of crude isophthalic acid
AMOCO CORP12 citations74
US4808751AFeb 28, 1989
Method for reactivating a group VIII noble metal catalyst for use in the purification of crude terephthalic acid
AMOCO CORP11 citations73
US4728630AMar 1, 1988
Rhodium on carbon catalyst
AMOCO CORP16 citations73
STANDARD OIL CO INDIANA
11 patentsUS4215051AJul 29, 1980
Formation, purification and recovery of phthalic anhydride
STANDARD OIL CO INDIANA564 citations95
US4234494ANov 18, 1980
Formation, purification and recovery of phthalic anhydride
STANDARD OIL CO INDIANA7 citations74
US4215056AJul 29, 1980
Formation, purification and recovery of phthalic anhydride
STANDARD OIL CO INDIANA9 citations74
US4215053AJul 29, 1980
Production of ortho-phthalic acid and its conversion and recovery of phthalic anhydride
STANDARD OIL CO INDIANA13 citations72
US4215052AJul 29, 1980
Production of liquid ortho-phthalic acid and its conversion to high purity phthalic anhydride
STANDARD OIL CO INDIANA12 citations72
US4215055AJul 29, 1980
Production of liquid ortho-phthalic acid and its conversion to high _purity phthalic anhdyride
STANDARD OIL CO INDIANA7 citations72
US4260546AApr 7, 1981
Aged molten color of maleic anhydride
STANDARD OIL CO INDIANA8 citations70
US4165324AAug 21, 1979
Removal of phthalide from impure phthalic anhydride
STANDARD OIL CO INDIANA16 citations67
US4233227ANov 11, 1980
Phthalic anhydride formation and separation
STANDARD OIL CO INDIANA5 citations63
US4215054AJul 29, 1980
Production of liquid ortho-phthalic acid and its conversion to high purity phthalic anhydride
STANDARD OIL CO INDIANA5 citations61
US4220596ASep 2, 1980
Separation of phthalic anhydride from vapor mixture also containing water vapor
STANDARD OIL CO INDIANA2 citations56