Inventor
PFEFFER JOHN D
US10 patents
⚠️ This page may combine multiple inventors who share the name “PFEFFER JOHN D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH CORP A O
9 patentsUS4878482ANov 7, 1989
Insulated fluid storage unit and method of making
SMITH CORP A O43 citations91
US4749532AJun 7, 1988
Method of and apparatus for fabrication of an insulated fluid storage unit
SMITH CORP A O34 citations91
US4790290ADec 13, 1988
Method and apparatus for foam insulating a vessel
SMITH CORP A O25 citations90
US4773977ASep 27, 1988
Anode mounting construction for a water heater
SMITH CORP A O17 citations73
US4890762AJan 2, 1990
Water heater with dam draped over flange
SMITH CORP A O11 citations72
US5002709AMar 26, 1991
Method of making a foam insulated vessel
SMITH CORP A O14 citations70
US4784087ANov 15, 1988
Clamping apparatus for use in foaming water heaters
SMITH CORP A O7 citations70
US4945892AAug 7, 1990
Water heater with outer jacket dam
SMITH CORP A O15 citations68
US5648158AJul 15, 1997
Method of protecting metal against corrosion and a vehicle including a structural member protected by the method in high temperature areas
SMITH CORP A O4 citations61