DB

Doug J. Birkholz

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #3,166,059 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8480549 Versatile exercise bars and handles Robert S. Hinds, Glenn Polinsky, Ray Rollins, John Stephenson, Brandon Grayson Hall +1 more 2013-07-09