DH

David L. Hughes

Merck: 13 patents #850 of 9,382Top 10%
EE Ellison Educational Equipment: 7 patents #2 of 18Top 15%
MI Mueller International: 5 patents #60 of 196Top 35%
PN Provo Craft And Novelty: 1 patents #27 of 49Top 60%
📍 Scotch Plains, NJ: #28 of 466 inventorsTop 7%
🗺 New Jersey: #2,226 of 69,400 inventorsTop 4%
Overall (All Time): #122,802 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
5157122 Process for the preparation of 3-unsubstituted indoles using methane sulfonic acid as an additional catalyst Dalian Zhao 1992-10-20
5126456 7-chloroquinaldine synthesis Zhiguo Jake Song 1992-06-30
5070022 Enzymic process for preparing leukotriene antagonists Paul J. Reider, Joseph S. Amato, James Bergan, Edward J. J. Grabowski 1991-12-03
4894450 Process for 2-(aminoalkylthio) carbapenems Edward J. J. Grabowski 1990-01-16
4654433 Process for the preparation of esters of amino acids 1987-03-31