Michael C. McDonald
12Patents
7h-index
19Co-inventors
63Inventor score
Filing activity: Jan 16, 1976 → Oct 18, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5197783A | Extendable/erectable arm assembly and method of borehole mining | Fixed Constructions | 85 | Expired |
| US7465182B1 | Electrical cord connector assembly | Electricity | 22 | Active |
| US4691790A | Method and apparatus for removing the inner conduit from a dual passage drill string | Fixed Constructions | 15 | Expired |
| US5418824A | In situ inlet mixer cleaning system | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5361804A | Water conservation valve | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5361286A | Method for in situ cleaning of inlet mixers | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4011019A | Adjustable and disengagable earth raise borer stem | Fixed Constructions | 10 | Expired |
| US6488221B1 | Self-aligning, spring-disk waterjet assembly | Performing Operations; Transporting | 6 | Expired |
| USD577110S1 | Air cleaner | General | 2 | Expired |
| US9861207B2 | Wave springs and cushioning articles containing the same | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US12259045B2 | Regulator valve assembly and components thereof | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11506289B2 | Regulator valve assembly and components thereof | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.