Inventor

Lee G. Sprague

Inventor

Augusta, GA, US

Overview

6→

Patents

1992–2013

Patent span

Chemistry

Primary field (CPC C)

Patents· 6 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds43%

A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents14%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium14%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds14%

C10MLubricating compositions14%

PatentTitleYear

8,461,378'Purification of fluoroalkanesulfonate salts'2013 7,348,446'Process for the production of trialkylsilyl(fluorosulfonyl)difluoroacetate'2008 6,551,468'Preparation of isoflurane by reaction of 2,2,2-trifluoroethyl difluoro-methyl ether and chlorine in added water, at low temperatures and/or at higher conversions'2003 6,274,005'Method for the preparation of hexafluoroacetone'2001 6,268,321'Grease prepared from chemically inert oil and thickening agent, and process for making same'2001 5,093,013'Ozone friendly fire-extinguishing agents'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2001Patents assigned to HALOCARBON PROD CORP (3)· patent assignee history

1992–2001Based in North Augusta, SC, US· patent location history

2001–2013Based in Augusta, GA, US· patent location history

2008–2013Patents assigned to DU PONT (2)· patent assignee history

2013Patents assigned to SCHULTZ JAMES A (1)· patent assignee history

2013Patents assigned to SIEVERT ALLEN CAPRON (1)· patent assignee history

2013Patents assigned to SPRAGUE LEE GRANT (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HALOCARBON PROD CORP	3	1992–2001
DU PONT	2	2008–2013
SCHULTZ JAMES A	1	2013
SIEVERT ALLEN CAPRON	1	2013
SPRAGUE LEE GRANTself	1	2013

Locations

Location	Patents	Span
Augusta, Georgia, US	4	2001–2013
North Augusta, SC, US	2	1992–2001