Inventor

Donald R. Stewart

Inventor
Fort Worth, TX, US

Overview

13→
Patents
1979–2012
Patent span
Human necessities
Primary field (CPC A)

Patents· 13 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes14%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations14%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium14%
LOC0610%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing5%
C07CAcyclic or carbocyclic compounds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C09DCoating compositions, e.g. paints, varnishes or lacquers5%
C25DProcesses for the electrolytic or electrophoretic production of coatings5%
F22BMethods of steam generation5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to CELANESE CORP (1)· patent assignee history
1986–2012Patents assigned to STEWART DONALD R (3)· patent assignee history
1986–1987Based in Springfield, OH, US· patent location history
1989Patents assigned to BABCOCK & WILCOX CO (1)· patent assignee history
1989–1997Based in Lynchburg, VA, US· patent location history
2004–2010Patents assigned to ACCESS PHARMA INC (3)· patent assignee history
2004Patents assigned to STEWART FILMSCREEN CORP (2)· patent assignee history
2004Based in Rancho Palos Verdes, CA, US· patent location history
2004Based in Irving, TX, US· patent location history
2007–2012Based in Fort Worth, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ACCESS PHARMA INC32004–2010
STEWART DONALD Rself31986–2012
STEWART FILMSCREEN CORP22004
BABCOCK & WILCOX CO11989
CELANESE CORP11984
Locations
LocationPatentsSpan
Fort Worth, Texas, US32007–2012
Rancho Palos Verdes, California, US22004
Lynchburg, Virginia, US21989–1997
Springfield, OH, US21986–1987
Irving, Texas, US12004