Patents/Inventors

David D. Kragten

Burnsville, NCUS1 patent

2 Patents

US120848642024
Coated Roofing Granules, Roofing Materials Made Therefrom and Methods of Preparing Coated Roofing Granules
Specialty Granules Investments LLC
0 cites
US117189912023
Coated Roofing Granules, Roofing Materials Made Therefrom and Methods of Preparing Coated Roofing Granules
Specialty Granules Investments LLC
0 cites