JK

Joseph Y. Ko

📍 Laguna Niguel, CA: #4 of 67 inventorsTop 6%
🗺 California: #1,869 of 17,285 inventorsTop 15%
Overall (1997): #35,376 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5686890 Door lock alarm — 1997-11-11
5652568 Wall outlet alarm and chime — 1997-07-29