RK

Robert C. Knetzger

MA Mattel: 2 patents #399 of 1,179Top 35%
📍 Redondo Beach, CA: #492 of 1,594 inventorsTop 35%
🗺 California: #149,087 of 386,348 inventorsTop 40%
Overall (All Time): #1,671,819 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4871176 Gaming method and apparatus — 1989-10-03
4300770 Electronic board game — 1981-11-17
4288537 Electronic game — 1981-09-08