Inventor
TANG DAVID Y
38 patents
⚠️ This page may combine multiple inventors who share the name “TANG DAVID Y”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OCCIDENTAL CHEM CO
30 patentsUS5935372AAug 10, 1999
Adhesive sealant for bonding metal parts to ceramics
OCCIDENTAL CHEM CO34 citations86
US4517372AMay 14, 1985
Process for the preparation of 4-fluorophthalic anhydride
OCCIDENTAL CHEM CO11 citations74
US4808760AFeb 28, 1989
Telomers prepared from chlorotrifluoroethylene and 1,2-dibromo-2-chlorotrifluoroethane
OCCIDENTAL CHEM CO6 citations73
US4801763AJan 31, 1989
Selective chlorination of chlorotrifluoroethylene telomers
OCCIDENTAL CHEM CO10 citations73
US4590315AMay 20, 1986
Process for the preparation of halo aromatic compounds
OCCIDENTAL CHEM CO16 citations73
US4500471AFeb 19, 1985
Preparation of trifluoromethyl-benzoyl halides
OCCIDENTAL CHEM CO9 citations73
US5874606AFeb 23, 1999
Process for making o-arylbenzonitriles
OCCIDENTAL CHEM CO11 citations72
US5866709AFeb 2, 1999
Process for making aromatic nitriles
OCCIDENTAL CHEM CO8 citations72
US5317049AMay 31, 1994
Polyimidesiloxane solution and method of coating substrates
OCCIDENTAL CHEM CO12 citations72
US5233054AAug 3, 1993
Process for the preparation of halophthalic anhydrides
OCCIDENTAL CHEM CO12 citations72
US5049682ASep 17, 1991
Process for the preparation of halophthalic anhydrides
OCCIDENTAL CHEM CO18 citations72
US4470930ASep 11, 1984
Preparation of nuclear chlorinated aromatic compounds
OCCIDENTAL CHEM CO11 citations72
US4469893ASep 4, 1984
Method for the preparation of nitrodiphenyl ethers
OCCIDENTAL CHEM CO10 citations72
US5998670ADec 7, 1999
Method of making high purity substituted diphenyldisulfides
OCCIDENTAL CHEM CO7 citations70
US4582948AApr 15, 1986
3-chloro-4-fluoro-5-nitrobenzotrifluoride
OCCIDENTAL CHEM CO16 citations70
US5206391AApr 27, 1993
Process for the preparation of halophthalic anhydrides
OCCIDENTAL CHEM CO15 citations69
US5177181AJan 5, 1993
Diamines and photosensitive polyimides made therefrom
OCCIDENTAL CHEM CO18 citations69
US4424396AJan 3, 1984
Process for the preparation substituted anilino acids
OCCIDENTAL CHEM CO11 citations69
US4367348AJan 4, 1983
Novel trifluoromethyl benzal chlorides and process for the preparation thereof
OCCIDENTAL CHEM CO7 citations69
US4792618ADec 20, 1988
Fluorinated carbocylic compounds
OCCIDENTAL CHEM CO16 citations67
US4952719AAug 28, 1990
Process for the preparation of halo aromatic compounds
OCCIDENTAL CHEM CO3 citations62
US4581179AApr 8, 1986
Process for the preparation of trifluoromethylbenzoyl chlorides and bromides from trifluoromethylbenzoyl fluorides
OCCIDENTAL CHEM CO2 citations62
US6153810ANov 28, 2000
Highly selective process for making o-arylbenzonitriles
OCCIDENTAL CHEM CO3 citations61
US4603222AJul 29, 1986
Method for the preparation of nitrodiphenyl ethers
OCCIDENTAL CHEM CO2 citations61
US4488953ADec 18, 1984
Purification of recycled paraffins in photochlorination process
OCCIDENTAL CHEM CO2 citations60
US4704483ANov 3, 1987
3,4-difluoro-5-nitrobenzotrifluoride and preparation of fluoro-nitro-benzotrifluorides
OCCIDENTAL CHEM CO4 citations59
US6130361AOct 10, 2000
Reducing meta content of isomeric mixtures of halo substituted toluenes
OCCIDENTAL CHEM CO3 citations56
US4968830ANov 6, 1990
Aromatization process
OCCIDENTAL CHEM CO1 citations52
US6284934B1Sep 4, 2001
Reducing meta content of isomeric mixtures of halo substituted alkylbenzenes
OCCIDENTAL CHEM CO0 citations47
US6156945ADec 5, 2000
Method of making high purity 2,4- and 3,4-dichlorotoluene
OCCIDENTAL CHEM CO1 citations46
HOOKER CHEMICALS PLASTICS CORP
8 patentsUS4296244AOct 20, 1981
(3-Trifluoromethylphenyl)-alpha-hydroxyacetic acid and process for preparation
HOOKER CHEMICALS PLASTICS CORP3 citations62
US4271319AJun 2, 1981
Phenyl beta-chloro-alpha-hydroxy-beta-(3-trifluoromethylphenyl)ethyl ketone and process for its production
HOOKER CHEMICALS PLASTICS CORP3 citations62
US4268687AMay 19, 1981
Method of making methyl and ethyl esters of (3-trifluoromethylphenyl)-acetic acid
HOOKER CHEMICALS PLASTICS CORP4 citations62
US4238413ADec 9, 1980
(3-Trifluoromethyl)-benzoyl cyanide and process for its production
HOOKER CHEMICALS PLASTICS CORP4 citations62
US4229378AOct 21, 1980
Process for the production of 1-phenyl-3-(3-trifluoromethylphenyl)-2-propanone
HOOKER CHEMICALS PLASTICS CORP2 citations62
US4212998AJul 15, 1980
1-Phenyl-3-(3-trifluoromethylphenyl)-2-propanol and process for its production
HOOKER CHEMICALS PLASTICS CORP4 citations62
US4212999AJul 15, 1980
1-Phenyl-3-(3-trifluoromethylphenyl)-1,2-propane diol and process for its production
HOOKER CHEMICALS PLASTICS CORP2 citations62
US4228085AOct 14, 1980
Phenyl-alpha,beta-epoxy-beta-(3-trifluoromethylphenyl)ethyl ketone and process for its production
HOOKER CHEMICALS PLASTICS CORP1 citations51