Inventor
David Stedman
Inventor
Kirkland, WA, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification25%
A61BDiagnosis13%
C07CAcyclic or carbocyclic compounds13%
F16KValves13%
F23NRegulating or controlling combustion13%
G05DSystems for controlling or regulating non-electric variables13%
G11BInformation storage based on relative movement between record carrier and transducer13%
PatentTitleYear
7,337,805'Valve with adjustable stop'20086,903,234'Method of making a calcium salt of 2-hydroxy-4-(mercaptomethyl) butanoic acid'20055,746,241'Precision dispensing system'19984,883,059'Intravaginal transducer biopsy guide'19894,480,986'Liquid fuel vaporizing burner'19844,125,881'Tape motion control for reel-to-reel drive'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to IBM (1)· patent assignee history
1978Based in Morgan Hill, CA, US· patent location history
1984Patents assigned to SEA LABS INC (1)· patent assignee history
1984Based in Redmond, WA, US· patent location history
1989Patents assigned to ADVANCED TECH LAB (1)· patent assignee history
1989–1998Based in Kirkland, WA, US· patent location history
1998Patents assigned to AGRIBIOTECH INC (1)· patent assignee history
2005Based in Benoni, ZA· patent location history
2008Patents assigned to SWAGELOK CO (1)· patent assignee history
2008Based in Mentor, OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ADVANCED TECH LAB | 1 | 1989 |
| AGRIBIOTECH INC | 1 | 1998 |
| IBM | 1 | 1978 |
| SEA LABS INC | 1 | 1984 |
| SWAGELOK CO | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kirkland, Washington, US | 2 | 1989–1998 |
| Mentor, OH, US | 1 | 2008 |
| Benoni, ZA | 1 | 2005 |
| Redmond, Washington, US | 1 | 1984 |
| Morgan Hill, California, US | 1 | 1978 |