DD

David Darby

📍 Danville, IL: #9 of 101 inventorsTop 9%
🗺 Illinois: #15,122 of 84,256 inventorsTop 20%
Overall (All Time): #873,164 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7163513 Psychological testing method and apparatus Ashley Bush 2007-01-16
5318224 Method and apparatus for heating and cooling control Richard G. Palmer 1994-06-07
4531266 Burial vault structure James W. Darby 1985-07-30
D265251 Swimming pool ladder James W. Darby 1982-06-29
4314390 Composite burial vault and method for making same James W. Darby 1982-02-09
4261083 Composite burial vault James W. Darby 1981-04-14