RD

Ronald A. Darby

📍 Kailua, HI: #31 of 169 inventorsTop 20%
🗺 Hawaii: #395 of 2,560 inventorsTop 20%
Overall (All Time): #1,242,672 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7694975 Toys or games using a launching device and foam blocks 2010-04-13
5862230 Method to reduce perceived sound leakage between auditoriums in multiplex theaters 1999-01-19
5216832 Animal chasing device 1993-06-08
4331214 Device to reduce the acoustical radiation from empty cans and containers during handling and transport in canning and related operations 1982-05-25