Inventor
SPRING DAVID J
21 patents
⚠️ This page may combine multiple inventors who share the name “SPRING DAVID J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WILKINSON SWORD LTD
15 patentsUS4230688AOct 28, 1980
Acyclic carboxamides having a physiological cooling effect
WILKINSON SWORD LTD364 citations99
US4178459ADec 11, 1979
N-Substituted paramenthane carboxamides
WILKINSON SWORD LTD191 citations99
US4153679AMay 8, 1979
Acyclic carboxamides having a physiological cooling effect
WILKINSON SWORD LTD192 citations99
US4150052AApr 17, 1979
N-substituted paramenthane carboxamides
WILKINSON SWORD LTD404 citations99
US4136163AJan 23, 1979
P-menthane carboxamides having a physiological cooling effect
WILKINSON SWORD LTD506 citations99
US4032661AJun 28, 1977
Cyclic sulphoxides and sulphones having a physiological cooling action on the human body
WILKINSON SWORD LTD263 citations99
US4248859AFeb 3, 1981
Alicyclic amides having a physiological cooling effect
WILKINSON SWORD LTD77 citations96
US4226988AOct 7, 1980
N-substituted paramenthane carboxamides
WILKINSON SWORD LTD80 citations96
US4193936AMar 18, 1980
N-substituted paramenthane carboxamides
WILKINSON SWORD LTD117 citations96
US4190643AFeb 26, 1980
Compositions having a physiological cooling effect
WILKINSON SWORD LTD60 citations96
US4070496AJan 24, 1978
Phosphine oxides having a physiological cooling effect
WILKINSON SWORD LTD112 citations96
US4020153AApr 26, 1977
Cyclic sulphonamides and sulphinamides having a physiological cooling effect
WILKINSON SWORD LTD66 citations96
US4296255AOct 20, 1981
Acyclic carboxamides having a physiological cooling effect
WILKINSON SWORD LTD134 citations94
US4318900AMar 9, 1982
Alicyclic amides having a physiological cooling effect
WILKINSON SWORD LTD38 citations92
US4069345AJan 17, 1978
Compositions having a physiological cooling effect
WILKINSON SWORD LTD14 citations73