DT

David A. Theisen

MA Marpac: 7 patents #1 of 12Top 9%
📍 Kernersville, NC: #58 of 355 inventorsTop 20%
🗺 North Carolina: #7,471 of 45,564 inventorsTop 20%
Overall (All Time): #752,281 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
D559721 Safety light cover David Zhang 2008-01-15
6497493 Illuminated safety helmet 2002-12-24
6406164 Safety light Jeffrey R. Small, Terrence P. McCoy 2002-06-18
D364404 Sound conditioner 1995-11-21
D347008 Sound conditioner Robert L. Gault 1994-05-17
D335129 Synthesized telephone call announcer Robert L. Gault 1993-04-27
D311065 Sound conditioner for masking intruding noises Robert L. Gault 1990-10-02