Inventor

Albert Sjoerdsma

Inventor

Cincinnati, OH, US

Overview

1980–1998

Patent span

Human necessities

Primary field (CPC A)

Patents· 14 as inventor

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes53%

C07CAcyclic or carbocyclic compounds16%

A01NPreservation of bodies of humans or animals or plants or parts thereof11%

Y02ATechnologies for adaptation to climate change11%

A23KFodder5%

C07DHeterocyclic compounds5%

PatentTitleYear

5,753,714'Polyamine derivatives'1998 5,373,005'Despiramine in the treatment of drug-resistant malarial infections'1994 5,214,050'Esters of castanospermine in the treatment of cerebral malaria'1993 5,196,450'Method of inhibiting protozoal growth'1993 4,800,209'Method of alleviating withdrawal symptoms'1989 4,670,459'Method of alleviating withdrawal symptoms'1987 4,575,510'Method of alleviating withdrawal symptoms'1986 4,437,873'Method of inhibiting algae'1984 4,435,425'Fluorinated diaminobutane derivatives'1984 4,399,151'Method of inhibiting the growth of protozoa'1983 4,382,946'Method of alleviating withdrawal symptoms'1983 4,336,054'Method of inhibiting algae'1982 4,215,130'Antihypertensive compositions of N-(2,6-dichlorophenyl)-4,5-dihydro-1H-imidazol-2-amine and N-(2-chloroethyl)-N-(1-methyl-2-phenoxyethyl)-benzenemethanamine'1980 4,189,492'Antihypertensive compositions of 2-[1-(2,6-dichlorophenoxy)ethyl]-4,5-dihydro-1H-imidazole and N-(2-chloroethyl)-N-(1-methyl-2-phenoxy-ethyl)benzenemethanamine'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980Patents assigned to RICHARDSON MERRELL INC (2)· patent assignee history

1980–1998Based in Cincinnati, OH, US· patent location history

1982–1994Patents assigned to MERRELL DOW PHARMA (10)· patent assignee history

1984Patents assigned to MERRELL TORAUDE & CO (1)· patent assignee history

1998Patents assigned to MERRELL PHARMA INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MERRELL DOW PHARMA	10	1982–1994
RICHARDSON MERRELL INC	2	1980
MERRELL PHARMA INC	1	1998
MERRELL TORAUDE & CO	1	1984

Locations

Location	Patents	Span
Cincinnati, OH, US	14	1980–1998