Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RG

Robert Grantham — 5 Patents

Schnecksville, PA: #17 of 76 inventorsTop 25%
Pennsylvania: #16,056 of 74,527 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Robert Grantham has been granted 5 US patents. The first was granted in 2001 and the most recent in April 2016. Robert Grantham ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Robert Grantham in Schnecksville, PA, US.

Patents per Year

Patents granted per year, 2001 to 2016Bar chart with a peak of 1 patents in 2001.peak 12001: 1 patents20012003: 1 patents20032004: 1 patents20042015: 1 patents20152016: 1 patents2016

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9314654 Grantham mechanical ventilator for use in preventing flashover when fighting fires 2016-04-19
9085039 Field portable pipe-mounted pipe cutting system with integral controls Peter Theriot, Josh Wilson, Stephen R. Seymour 2015-07-21
6821631 Method and composition for treating substrates Robert Weaver 2004-11-23
6528175 Method for pressure treating boards John S. Warren 2003-03-04
6235349 Method of pressure treating boards John S. Warren 2001-05-22