HS

Howard Daniel Hollis Showalter

WC Warner-Lambert Company: 28 patents #30 of 1,610Top 2%
BL British Technology Group Limited: 3 patents #32 of 501Top 7%
📍 Ann Arbor, MI: #231 of 6,071 inventorsTop 4%
🗺 Michigan: #2,270 of 86,293 inventorsTop 3%
Overall (All Time): #132,635 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
5061791 4-bromo-4'-demethylepipodophyllotoxin derivatives Roy T. Winters 1991-10-29
4806654 Processes for the preparation of benzo(chalcogeno)(4,3,2-cd)indazoles and intermediates thereof Vladimir Genukh Beylin, Om P. Goel, Anthony D. Sercel 1989-02-21
4604390 Antibacterial benzo(chalcogeno)[4,3,2-cd]indazoles Edward Faith Elslager, Leslie M. Werbel, Daniel Fred Ortwine, Donald F. Worth, David B. Capps +3 more 1986-08-05
4556654 Antimicrobial substituted anthra[1,9-cd]pyrazol-6(2H)-ones Judith L. Johnson, Leslie M. Werbel, Edward Faith Elslager 1985-12-03