Inventor
CHAUDHURI RATAN K
US85 patents
⚠️ This page may combine multiple inventors who share the name “CHAUDHURI RATAN K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ISP INVESTMENTS INC
26 patentsUS5294644AMar 15, 1994
Surface active lactams
ISP INVESTMENTS INC107 citations96
US5093031AMar 3, 1992
Surface active lactams
ISP INVESTMENTS INC105 citations96
US5354726AOct 11, 1994
Delivery system for agricultural chemicals
ISP INVESTMENTS INC46 citations93
US5283229AFeb 1, 1994
Delivery system for agricultural chemicals
ISP INVESTMENTS INC49 citations93
US5645859AJul 8, 1997
Process for producing an alpha or beta-hydroxy acid-vinylpyrrolidone polymer, copolymer or graft polymer complex in the form of free-flowing powders having a high acid loading
ISP INVESTMENTS INC32 citations92
US5160528ANov 3, 1992
Delivery system for agricultural chemicals
ISP INVESTMENTS INC43 citations92
US5156666AOct 20, 1992
Delivery system for agricultural chemicals
ISP INVESTMENTS INC24 citations92
US5071463ADec 10, 1991
Delivery system for agricultural chemicals
ISP INVESTMENTS INC51 citations92
US5055046AOct 8, 1991
Bioadhesive composition
ISP INVESTMENTS INC22 citations92
US5736128AApr 7, 1998
Cosmetic composition for rejuvenation of skin without skin irritation
ISP INVESTMENTS INC69 citations91
US5830441ANov 3, 1998
Photostable UV absorbent containing A-cyano cinnamyl moiety
ISP INVESTMENTS INC47 citations90
US5626858AMay 6, 1997
Pesticide or herbicide polymer complexes for forming aqueous dispersions
ISP INVESTMENTS INC13 citations82
US5476662ADec 19, 1995
Pesticide or herbicide polymer complexes for forming aqueous dispersions
ISP INVESTMENTS INC13 citations82
US5470508ANov 28, 1995
Aqueous oil removal composition containing higher-alkyl pyrrolidone
ISP INVESTMENTS INC12 citations74
US5385948AJan 31, 1995
Alkoxyalkyl lactams as solvents for macro and microemulsions
ISP INVESTMENTS INC15 citations74
US5283228AFeb 1, 1994
Leaching inhibition of crop treating chemicals with amino containing polymers
ISP INVESTMENTS INC10 citations74
US5250499AOct 5, 1993
Delivery system for agricultural chemicals
ISP INVESTMENTS INC7 citations74
US5231070AJul 27, 1993
Leaching inhibition of crop treating chemicals with lactam containing polymers
ISP INVESTMENTS INC18 citations74
US5229355AJul 20, 1993
Leaching inhibition of crop treating chemicals with polymers
ISP INVESTMENTS INC12 citations74
US5229354AJul 20, 1993
Leaching inhibition of crop treating chemicals with nitrogen containing polymers
ISP INVESTMENTS INC19 citations74
US5223580AJun 29, 1993
Process for making a charge imbalanced polymer
ISP INVESTMENTS INC8 citations74
US5221791AJun 22, 1993
Water-soluble biologically active ammonium salts
ISP INVESTMENTS INC12 citations74
US5208295AMay 4, 1993
Charge imbalanced polyelectrolyte composition
ISP INVESTMENTS INC12 citations74
US5176736AJan 5, 1993
Delivery system for agricultural chemicals
ISP INVESTMENTS INC15 citations74
US5156837AOct 20, 1992
Cosmetic compositions containing quaternized nitrogen compounds
ISP INVESTMENTS INC11 citations74
US5110585AMay 5, 1992
Quaternized nitrogen containing polycyclic compounds
ISP INVESTMENTS INC11 citations74
GAF CORP
6 patentsUS4732990AMar 22, 1988
Quaternized nitrogen containing compounds
GAF CORP28 citations93
US4848377AJul 18, 1989
Article for permanent structure alteration of hair
GAF CORP20 citations82
US4808569AFeb 28, 1989
Fragrance additive
GAF CORP20 citations82
US4883655ANov 28, 1989
Quaternized nitrogen containing polycyclic compounds
GAF CORP16 citations74
US4837013AJun 6, 1989
Quaternized nitrogen containing compounds
GAF CORP7 citations74
US4834970AMay 30, 1989
Cosometic compositions containing quaternized nitrogen containing compound
GAF CORP7 citations74
GAF CHEMICALS CORP
4 patentsUS4910247AMar 20, 1990
Adhesive composition
GAF CHEMICALS CORP114 citations95
US5066709ANov 19, 1991
Bioadhesive composition
GAF CHEMICALS CORP28 citations92
US4952559AAug 28, 1990
Fragrance additive
GAF CHEMICALS CORP22 citations82
US5008104AApr 16, 1991
Quaternized nitrogen containing compounds
GAF CHEMICALS CORP7 citations74
SYTHEON LTD
4 patentsUS10597402B2Mar 24, 2020
Compositions and methods for restoring epidermal integrity and function and treating dermatological diseases
SYTHEON LTD9 citations84
US9636321B2May 2, 2017
Compositions and methods for treating psoriasis
SYTHEON LTD5 citations82
US11077035B2Aug 3, 2021
Hair treatment compositions and methods
SYTHEON LTD2 citations73
US10568819B2Feb 25, 2020
Skin enhancing compositions and methods
SYTHEON LTD4 citations73
EM IND
3 patentsUS6831191B2Dec 14, 2004
Photo stable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom
EM IND22 citations92
US6699463B2Mar 2, 2004
Photostable cationic organic sunscreen compounds with antioxidant properties and compositions obtained therefrom
EM IND22 citations92
US6602515B2Aug 5, 2003
Photo stable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom
EM IND28 citations92
ISP VAN DYK INC
3 patentsUS5451394ASep 19, 1995
Quaternary salts of para-dialkylamino benzamide derivatives
ISP VAN DYK INC16 citations80
US5427774AJun 27, 1995
Heterocyclic quaternary salts of para-dialkylamino benzamide derivatives
ISP VAN DYK INC15 citations80
US5427773AJun 27, 1995
Quaternary salts of dialkylaminobenzamides
ISP VAN DYK INC17 citations80
EMD CHEMICALS INC
2 patentsEM IND INC
1 patentCHAUDHURI RATAN K
1 patentShowing the top 50 of 85 patents by PatentIndex Score.