DP

David J. Petschulat

📍 Fullerton, CA: #182 of 1,038 inventorsTop 20%
🗺 California: #106,790 of 386,348 inventorsTop 30%
Overall (All Time): #993,456 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9704464 Apparatus for enhancing output of a stringed musical instrument 2017-07-11
4802397 Vibrato palm rest 1989-02-07
4777858 Adjustable string contact system for a musical instrument Joseph Glaser, II 1988-10-18
D297146 Guitar body 1988-08-09
4667561 Manual string lock with adjustable locking action David C. Storey 1987-05-26