HD

Harold D. DeLong

📍 Escondido, CA: #403 of 1,330 inventorsTop 35%
🗺 California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,288,355 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5628068 Pitching glove having webbed fingers 1997-05-13
4584997 Volumetric flow gauge 1986-04-29
4249712 Adjustable headrest 1981-02-10
4223944 Retractable wheelchair tray mechanism 1980-09-23