Inventor
David K. Christensen
Inventor
Newbury, MA, US
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F01Dprimary
F01DNon-positive displacement machines or engines, e.g. steam turbines20%
F04DNon-positive-displacement pumps20%
B29CShaping or joining of plastics10%
B29LIndexing scheme associated with subclass b29c, relating to particular articles10%
F02CGas-turbine plants10%
F02KJet-propulsion plants10%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998Patents assigned to OUTBOARD MARINE CORP (1)· patent assignee history
1998Based in Winthrop Harbor, IL, US· patent location history
2009–2010Patents assigned to GEN ELECTRIC (2)· patent assignee history
2009–2010Based in Newbury, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 2 | 2009–2010 |
| OUTBOARD MARINE CORP | 1 | 1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Newbury, Massachusetts, US | 2 | 2009–2010 |
| Winthrop Harbor, Illinois, US | 1 | 1998 |