DH

David B. Helphrey

BI Beckman Instruments: 3 patents #84 of 431Top 20%
DA Danaher: 1 patents #1,463 of 2,950Top 50%
Overall (All Time): #1,270,879 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6660233 Analytical biochemistry system with robotically carried bioarray Peter J. Coassin, Jack D. McNeal 2003-12-09
5447692 On-line process flow and reaction monitor Charles A. Keenan, Peter J. Coassin, Roger Winer, Jiunn-Jye Dih 1995-09-05
4596462 Spectrophotometer purge apparatus 1986-06-24
4396288 Control of multi-position filter mechanism in an optical measuring system 1983-08-02