JB

Joseph Brown

EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
📍 Newark, DE: #539 of 1,550 inventorsTop 35%
🗺 Delaware: #2,574 of 7,163 inventorsTop 40%
Overall (All Time): #1,655,314 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5338340 Filter and method of making same James W. Kasmark, Jr. 1994-08-16
5157754 Wavelength conversion by quasi phase matching and the manufacture and use of optical articles therefor John D. Bierlein, Carolus J. van der Poel 1992-10-20
5124177 Filter and method of making same James W. Kasmark, Jr. 1992-06-23