Inventor
Michael C. McDonald
Inventor
Sumner, WA, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling15%
B08BCleaning in general10%
G21CNuclear reactors10%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
Y10TTechnical subjects covered by former us classification10%
B05BSpraying apparatus5%
B24CAbrasive or related blasting with particulate material5%
B26FPerforating5%
E03CDomestic plumbing installations for fresh water or waste water5%
F16DCouplings for transmitting rotation5%
PatentTitleYear
7,465,182'Electrical cord connector assembly'2008D0577110'Air cleaner'20086,488,221'Self-aligning, spring-disk waterjet assembly'20025,418,824'In situ inlet mixer cleaning system'19955,361,804'Water conservation valve'19945,361,286'Method for in situ cleaning of inlet mixers'19945,197,783'Extendable/erectable arm assembly and method of borehole mining'19934,691,790'Method and apparatus for removing the inner conduit from a dual passage drill string'19874,011,019'Adjustable and disengagable earth raise borer stem'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977Patents assigned to INGERSOLL RAND CO (1)· patent assignee history
1977Based in Auburn, WA, US· patent location history
1987Patents assigned to FLOWDRIL CORP (1)· patent assignee history
1987–1993Based in Summer, WA, US· patent location history
1993Patents assigned to EXXON RESOURCES CANADA (1)· patent assignee history
1994–1995Patents assigned to GEN ELECTRIC (2)· patent assignee history
1994–2002Based in Sumner, WA, US· patent location history
2008Patents assigned to MCDONALD MICHAEL (2)· patent assignee history
2008Based in Waterford, WI, US· patent location history
2008Based in Redlands, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 2 | 1994–1995 |
| MCDONALD MICHAELself | 2 | 2008 |
| EXXON RESOURCES CANADA | 1 | 1993 |
| FLOWDRIL CORP | 1 | 1987 |
| INGERSOLL RAND CO | 1 | 1977 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sumner, Washington, US | 4 | 1994–2002 |
| Summer, Washington, US | 2 | 1987–1993 |
| Waterford, WI, US | 1 | 2008 |
| Redlands, California, US | 1 | 2008 |
| Auburn, Washington, US | 1 | 1977 |