Dennis Grantham — 2 Patents at Progress Rail Services

Dennis Grantham has been granted 2 US patents while listed as an inventor at Progress Rail Services. The first was granted in 2011 and the most recent in February 2013. Dennis Grantham ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Dennis Grantham in Millbrook, AL, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
8365673	System and method for railroad track tie plate collection from a rail bed	Mark Plyler, Andy Loftis, Gary E. Gibson	2013-02-05
8082852	System and method for railroad track tie plate orientation	Mark Plyler, Andy Loftis, John B. Cook, Michael W. Adams	2011-12-27

Dennis Grantham — 2 Patents

Issued Patents All Time

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