Inventor
Robert D. Mitchell
Inventor
Wilmington, DE, US
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B22Fprimary
B22FWorking metallic powder10%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants10%
G03GElectrography10%
B24DTools for grinding, buffing or sharpening7%
B30BPresses in general7%
C22CAlloys7%
F01DNon-positive displacement machines or engines, e.g. steam turbines7%
F02CGas-turbine plants7%
A61FFilters implantable into blood vessels3%
A61KPreparations for medical, dental or toiletry purposes3%
PatentTitleYear
7,506,501'Compact mixer with trimmable open centerbody'20096,782,317'Apparatus and method for testing jet engine fuel manifold flow distribution'20046,672,145'Apparatus and method for testing jet engine fuel manifold flow distribution'20045,428,151'Medrogestrone production'19955,288,711'Method of treating hyperproliferative vascular disease'19945,026,427'Process for making pigmented ink jet inks'19914,744,455'Dispenser and component feeder'19884,734,352'Polyhydroxy charging adjuvants for liquid electrostatic developers'19884,663,264'Liquid electrostatic developers containing aromatic hydrocarbons'19874,631,244'Process for preparation of liquid toners for electrostatic imaging using polar additive'19864,179,379'Pick-up nozzle'19794,174,933'Forming an extruded bar out of metal chips'19794,124,338'Hot briquette press'19784,108,614'Zirconium layer for bonding diamond compact to cemented carbide backing'19784,063,909'Abrasive compact brazed to a backing'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1978Patents assigned to MITCHELL ROBERT DENNIS (2)· patent assignee history
1977–1978Based in Johannesburg, ZA· patent location history
1978–1979Patents assigned to COMBUSTION ENG (2)· patent assignee history
1986–1991Patents assigned to DU PONT (4)· patent assignee history
1986–1988Based in Wilmington, DE, US· patent location history
1994–1995Patents assigned to AMERICAN HOME PROD (2)· patent assignee history
1994–1995Based in Doylestown, PA, US· patent location history
2004–2009Patents assigned to HONEYWELL INT INC (3)· patent assignee history
2004–2009Based in Scottsdale, AZ, US· patent location history
2004Based in Escondido, AZ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 4 | 1986–1991 |
| HONEYWELL INT INC | 3 | 2004–2009 |
| AMERICAN HOME PROD | 2 | 1994–1995 |
| COMBUSTION ENG | 2 | 1978–1979 |
| MITCHELL ROBERT DENNISself | 2 | 1977–1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wilmington, Delaware, US | 3 | 1986–1988 |
| Scottsdale, AZ, US | 2 | 2004–2009 |
| Doylestown, Pennsylvania, US | 2 | 1994–1995 |
| Johannesburg, ZA | 2 | 1977–1978 |
| Escondido, AZ, US | 1 | 2004 |