DD

David H. DaCosta

ER Ergenics: 1 patents #9 of 20Top 45%
Overall (All Time): #1,588,142 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7254983 Fuel gauge for hydrogen storage media P. Mark Golben, David C. Tragna 2007-08-14
7237428 Fuel gauge for hydrogen storage media P. Mark Golben, David C. Tragna 2007-07-03
6042960 Automatic water vapor density control of hydrogen gas P. Mark Golben 2000-03-28