Inventor

KUHLMANN GEORGE E

US21 patents

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

KUHLMANN GEORGE E

STANDARD OIL CO INDIANA

Process for the manufacture of maleic anhydride having improved age molten color

Production of liquid ortho-phthalic acid and its conversion to high purity phthalic anhydride

Production of ortho-phthalic acid and its conversion and recovery of phthalic anhydride

Production of liquid ortho-phthalic acid and its conversion to high _purity phthalic anhdyride

Oxidation of di- and trimethyl aromatic hydrocarbons having ortho-oriented methyl groups in liquid phthalic acid

Preparation of phthalic acid by solventless oxidation of liquid ortho-xylene

Continuous production of ortho-phthalic acid product by two-step catalytic neat oxidation of liquid ortho-xylene with air

Preparation of phthalic acid by single step continuous air oxidation of liquid ortho-xylene

Maleic anhydride catalyst recycle

Production of liquid ortho-phthalic acid and its conversion to high purity phthalic anhydride

AMOCO CORP

Method for preparing aromatic carboxylic acids

Process for preparing 2,6-naphthalene-dicarboxylic acid

Method for making 2,6-naphthalene dicarboxylic acid

Process for purification of aromatic dicarboxylic acids

Method for producing a di-(mono- or poly-)carboxyaryl ether

Polyacyl aryl arylates

STANDARD OIL CO

Quality of phthalic acids improved by haloacetic acid

Polyacyl aryl arylates

Quality of phthalic acids improved by strong inorganic acids

Preparation of an aqueous solution containing ions of at least manganous and bromide ions from a water soluble manganous salt and elemental bromine

STANDARD OIL CO OHIO

Thermal process for the liquefaction of aromatic hydrocarbon oxidation residues and recovery of acetic acid