DF

Donald C. Frick

WP World Wide Plastics: 4 patents #1 of 4Top 25%
📍 Levittown, PA: #88 of 461 inventorsTop 20%
🗺 Pennsylvania: #15,920 of 74,527 inventorsTop 25%
Overall (All Time): #1,037,217 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6883388 Self-cleaning flow meter having adjacent inlet and outlet fluid flow passageways 2005-04-26
6321604 Electro-optical float position indicator George R. Jackson, Wayne D. Tessarvich 2001-11-27
D344031 Flowmeter Wayne D. Tessarvich 1994-02-08
D292891 Manometer George R. Jackson 1987-11-24
4479377 Method and apparatus for measuring gas flow George R. Jackson 1984-10-30