Inventor
LEE JOHN Y
US39 patents
⚠️ This page may combine multiple inventors who share the name “LEE JOHN Y”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ETHYL CORP
16 patentsUS4745189AMay 17, 1988
Method of preparing N-halogenated organic heterocyclic compounds
ETHYL CORP63 citations94
US5200537AApr 6, 1993
Process for preparing metallocenes
ETHYL CORP13 citations74
US4612398ASep 16, 1986
Alkyl mercaptan process
ETHYL CORP10 citations74
US5276199AJan 4, 1994
Process for preparing cyclopentenones
ETHYL CORP8 citations73
US5145943ASep 8, 1992
Production of particulate amide/imide prepolymers
ETHYL CORP14 citations73
US4514575AApr 30, 1985
Process for preparing tertiary phosphines
ETHYL CORP10 citations72
US4913848AApr 3, 1990
Process for producing a high purity dibromoneopentyl glycol product
ETHYL CORP3 citations63
US4473706ASep 25, 1984
Preparation of cyclic-keto-acids
ETHYL CORP3 citations62
US4873377AOct 10, 1989
Preparation of dibromoneopentyl glycol
ETHYL CORP4 citations61
US4507503AMar 26, 1985
Process for preparing tertiary phosphines
ETHYL CORP4 citations61
US4507504AMar 26, 1985
Process for preparing tertiary phosphines
ETHYL CORP4 citations61
US4492798AJan 8, 1985
Process for preparing arylalkylpyruvic acids
ETHYL CORP2 citations60
US4752418AJun 21, 1988
Paraffin sulfonate process
ETHYL CORP1 citations52
US4738802AApr 19, 1988
Process for preparing alkyl α-keto-carboxylic acids from alkyl halides
ETHYL CORP1 citations52
US4925984AMay 15, 1990
Para-bromination of ortho-alkyl anilines
ETHYL CORP1 citations51
US4599435AJul 8, 1986
Preparation of 6-carboxy-3,4-dihydro-2H-pyran
ETHYL CORP0 citations50
ALBEMARLE CORP
16 patentsUS6169208B1Jan 2, 2001
Process for producing a magnesium di[tetrakis(Faryl)borate] and products therefrom
ALBEMARLE CORP20 citations92
US6162950ADec 19, 2000
Preparation of alkali metal tetrakis(F aryl)borates
ALBEMARLE CORP19 citations92
US6388138B1May 14, 2002
Process for producing a magnesium di[tetrakis(Faryl)borate] and products therefrom
ALBEMARLE CORP14 citations84
US7767858B2Aug 3, 2010
Diimines and secondary diamines
ALBEMARLE CORP10 citations83
US5434324AJul 18, 1995
Preparation of alkylcyclopentadienes
ALBEMARLE CORP7 citations74
US6248265B1Jun 19, 2001
Clean generation of a fluoroaryl grignard reagent
ALBEMARLE CORP9 citations73
US6129863AOct 10, 2000
Clean generation of a perfluoroaryl grignard reagent
ALBEMARLE CORP13 citations73
US5569746AOct 29, 1996
Process for preparing alkylsubstituted cyclopentadienyl metallocene compounds
ALBEMARLE CORP9 citations73
US6150560ANov 21, 2000
Recovery of tris(aryl)borane from their tetrahydrofuran complexes
ALBEMARLE CORP2 citations63
US5959151ASep 28, 1999
Process for the purification of pentafluorophenyl boron compounds
ALBEMARLE CORP4 citations63
US5648308AJul 15, 1997
Process for upgrading metallocene catalysts
ALBEMARLE CORP4 citations63
US5856255AJan 5, 1999
Preparation of supported auxiliary catalysts at elevated temperature and pressure in a closed vessel
ALBEMARLE CORP5 citations62
US5648583AJul 15, 1997
Process for converting exo-isomers of alkyl substituted cyclopentadienes to endo-isomers
ALBEMARLE CORP2 citations62
US7964695B2Jun 21, 2011
Chain extenders
ALBEMARLE CORP4 citations60
US7087780B2Aug 8, 2006
Process for producing tetrakis(Faryl)borate salts
ALBEMARLE CORP2 citations60
US6831200B2Dec 14, 2004
Process for producing tetrakis(Faryl)borate salts
ALBEMARLE CORP2 citations60