James Douglas Welty, II

2 Patents

• US124217262025

  Ethylene-propylene-diene Terpolymer (“EPDM”) Roof Shingles

  Ignite Labs, LLC

  0 cites
• US122346492025

  Ethylene-propylene-diene Terpolymer (“EPDM”) Roof Shingles

  Ignite Labs, LLC

  0 cites