Inventor

Donald J. Burton

Inventor

Iowa City, IA, US

Overview

8→

Patents

1982–2003

Patent span

Chemistry

Primary field (CPC C)

Patents· 8 as inventor

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

C07Fprimary

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium50%

C07CAcyclic or carbocyclic compounds36%

C07BGeneral methods of organic chemistry7%

C07DHeterocyclic compounds7%

PatentTitleYear

6,653,515'Synthesis of , , -trifluorostyrene via in-situ formation of trifluorovinyl metal halide'2003 4,895,991'Method of preparation of trifluoromethyl copper and trifluoromethyl aromatics'1990 4,749,802'Method of preparation of trifluoromethyl copper and trifluoromethyl aromatics'1988 4,650,887'Method of preparation of compounds containing perfluoroalkyl groups'1987 4,582,921'Method of preparation of compounds containing perfluoroalkyl groups'1986 4,478,761'Method for preparing fluorine-containing phosphonates'1984 4,393,011'Method for the preparation of fluorine-containing phosphonates and phosphonic acids'1983 4,330,486'Bis(phosphonic acid) difluoromethane'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to UNIV IOWA RESEACH FOUNDATION (1)· patent assignee history

1982–2003Based in Iowa City, IA, US· patent location history

1983–1990Patents assigned to UNIV IOWA RES FOUND (6)· patent assignee history

2003Patents assigned to BALLARD POWER SYSTEMS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNIV IOWA RES FOUND	6	1983–1990
BALLARD POWER SYSTEMS	1	2003
UNIV IOWA RESEACH FOUNDATION	1	1982

Locations

Location	Patents	Span
Iowa City, IA, US	8	1982–2003