JP

John D. Pfeffer

AS A. O. Smith: 9 patents #13 of 319Top 5%
AH Aos Holding: 1 patents #40 of 96Top 45%
Overall (All Time): #527,049 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5648158 Method of protecting metal against corrosion and a vehicle including a structural member protected by the method in high temperature areas 1997-07-15
5002709 Method of making a foam insulated vessel James L. Chevalier, Thomas F. Brownell 1991-03-26
4957097 Foam insulated vessel and method of making the same James L. Chevalier, Thomas F. Brownell 1990-09-18
4945892 Water heater with outer jacket dam James L. Chevalier, Leslie R. Wright 1990-08-07
4890762 Water heater with dam draped over flange 1990-01-02
4878482 Insulated fluid storage unit and method of making 1989-11-07
4790290 Method and apparatus for foam insulating a vessel James L. Chevalier, Douglas D. King 1988-12-13
4784087 Clamping apparatus for use in foaming water heaters James L. Chevalier, Douglas D. King, Allen L. Johnson 1988-11-15
4773977 Anode mounting construction for a water heater Timothy H. Houle 1988-09-27
4749532 Method of and apparatus for fabrication of an insulated fluid storage unit 1988-06-07