DB

Donald D. Bartholomew

PT Proprietary Technology: 2 patents #1 of 1Top 100%
📍 Marine City, MI: #1 of 4 inventorsTop 25%
🗺 Michigan: #173 of 4,492 inventorsTop 4%
Overall (1997): #16,945 of 185,788Top 10%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5655796 Tubular assembly and method of making same — 1997-08-12
5626371 Quick connector with one-piece retainer — 1997-05-06
5621959 Method of attaching a bead assembly to a tubular conduit — 1997-04-22