Inventor

Stephen J. Douglas

Inventor
Parker, CO, US

Overview

13→
Patents
1991–2012
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.

B06Bprimary
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general22%
G10KSound-producing devices19%
Y10TTechnical subjects covered by former us classification19%
A61KPreparations for medical, dental or toiletry purposes13%
A61BDiagnosis9%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations6%
H10NElectric solid-state devices not otherwise provided for6%
A61MDevices for introducing media into, or onto, the body3%
G01SRadio direction-finding3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1997Patents assigned to GLAXO GROUP LTD (4)· patent assignee history
1991–1993Based in Welwyn, GB· patent location history
1995–2000Patents assigned to TETRAD CORP (4)· patent assignee history
1995–1997Patents assigned to PARALLEL DESIGN (2)· patent assignee history
1995–2000Based in Parker, CO, US· patent location history
1995–2000Based in Chandler, AZ, US· patent location history
1997Based in Ware, GB· patent location history
2000Patents assigned to PARALLEL DESIGN INC (2)· patent assignee history
2012Patents assigned to BUSSE LAWRENCE J (1)· patent assignee history
2012Based in Cary, NC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GLAXO GROUP LTD41991–1997
TETRAD CORP41995–2000
PARALLEL DESIGN21995–1997
PARALLEL DESIGN INC22000
BUSSE LAWRENCE J12012
Locations
LocationPatentsSpan
Parker, CO, US41995–2000
Chandler, AZ, US41995–2000
Welwyn, GB21991–1993
Cary, NC, US12012
Ware, GB11997