Inventor

John D. Karkas

Inventor

New York, NY, US

Overview

3→

Patents

1988–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary

C07DHeterocyclic compounds43%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations29%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium29%

PatentTitleYear

5,663,175'Prodrugs of herpes TK inhibitors'1997 4,816,447'Anti-viral guanine compounds'1989 4,782,062'9-(2-hydroxymethyl)cycloalkylmethyl) guanines'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1997Patents assigned to MERCK & CO INC (3)· patent assignee history

1988–1997Based in New York, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MERCK & CO INC	3	1988–1997

Locations

Location	Patents	Span
New York, New York, US	3	1988–1997