Ralph Brown — 3 Patents at Shell Oil Compny

Ralph Brown — 3 Patents

Shell Oil Compny: 1 patents #2,223 of 4,423Top 55%

UNUnknown: 1 patents #29,356 of 83,584Top 40%

Houston, TX: #6,736 of 21,073 inventorsTop 35%

Texas: #41,402 of 125,132 inventorsTop 35%

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

Ralph Brown has been granted 3 US patents while listed as an inventor at Shell Oil Compny. The first was granted in 1991 and the most recent in November 2008. Ralph Brown ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Ralph Brown in Houston, TX, US.

Patents per Year

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
7448927	Shallow draft boat with a tri-tunnel hull	Marin Savov	2008-11-11
7228810	Powerboat with disappearing tunnel	—	2007-06-12
5017258	Pipe rehabilitation using epoxy resin composition	Marlene Canahuati, Roy J. Jackson	1991-05-21

Ralph Brown — 3 Patents

Patents per Year

Issued Patents All Time

Patent Widget