DG

David Grudzinski

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Friendswood, TX: #179 of 480 inventorsTop 40%
🗺 Texas: #52,441 of 125,132 inventorsTop 45%
Overall (All Time): #2,201,172 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6549618 Pay telephone vault guard — 2003-04-15
6317496 Telephone keypad guard William W. White 2001-11-13