Malcolm MacDuff
14Patents
4h-index
19Co-inventors
57Inventor score
Filing activity: Jun 21, 1985 → May 17, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6458172B1 | Fuel additive compositions and fuel compositions containing detergents and fluidizers | Chemistry; Metallurgy | 20 | Expired |
| US8555926B2 | Supply manifold for hydronic system | Emerging Cross-Sectional Technologies | 15 | Active |
| US7704289B2 | Method of operating a direct injection spark-ignited engine with a fuel composition | Chemistry; Metallurgy | 10 | Active |
| US4596672A | Detergent compositions | Chemistry; Metallurgy | 4 | Expired |
| US9803876B2 | Supply manifold with rotatable slider | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9045709B2 | Synergistic detergent and active metal compound combination | Chemistry; Metallurgy | 2 | Active |
| US10450524B2 | Synergistic detergent and active metal compound combination | Chemistry; Metallurgy | 0 | Active |
| US9914892B2 | Fuel additive composition containing a dispersion of iron particles and a detergent | Chemistry; Metallurgy | 0 | Active |
| US10408468B2 | Supply manifold with rotatable slider | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11339894B2 | Quarter-turn pin-valve actuator | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US5376385A | Releasably bound active materials | Chemistry; Metallurgy | 0 | Expired |
| US9574148B2 | Fuel additive containing a dispersion of iron particles and an ammonium polyester detergent | Chemistry; Metallurgy | 0 | Active |
| US8070837B2 | Use of fatty acid alkoxylates as a method to remedy engine intake valve sticking | Chemistry; Metallurgy | 0 | Active |
| US10845063B2 | Hydronic supply manifold | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.