Frank J. Sisca

UN Unknown: 2 patents #12,644 of 83,584Top 20%

📍 Redwood City, CA: #2,793 of 5,061 inventorsTop 60%

🗺 California: #185,134 of 386,348 inventorsTop 50%

Overall (All Time): #2,233,524 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6012689	Safety ladder accessory container	—	2000-01-11
5988499	Number frequency counter	—	1999-11-23