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Home › Stress-Tek › John Hoffman

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John Hoffman — 3 Patents

STStress-Tek: 2 patents #3 of 11Top 30%

Calabasas, CA: #1,154 of 4,119 inventorsTop 30%

California: #150,760 of 386,348 inventorsTop 40%

Overall (All Time): #1,328,092 of 4,157,543Top 35%

3 Patents All Time

John Hoffman has been granted 3 US patents while listed as an inventor at Stress-Tek. The first was granted in 1989 and the most recent in July 2009. John Hoffman ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Hoffman in Calabasas, CA, US.

Patents per Year

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
7561034	Vehicle load warning system	Keith Reichow, Pat Ryan, Bill Zimmerman, Lee Schwartz	2009-07-14
7113081	Vehicle load warning system	Keith Reichow, Pat Ryan, Bill Zimmerman, Lee Schwartz	2006-09-26
4880266	Vehicle ash tray	Bruce Jay GREENBAUM	1989-11-14

John Hoffman — 3 Patents

Patents per Year

Issued Patents All Time

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