Francis W. MacGregor
18Patents
10h-index
9Co-inventors
61Inventor score
Filing activity: Nov 3, 1976 → Jul 12, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4875246A | Surface treating device | Human Necessities | 74 | Expired |
| USD280934S | Foot massager | General | 41 | Expired |
| USD269636S | Foot massager | General | 35 | Expired |
| US4289070A | Rubber stamp | Performing Operations; Transporting | 29 | Expired |
| US4997134A | Document shredding machine and method | Performing Operations; Transporting | 27 | Expired |
| USD278593S | Ratchet handle for hand tool | General | 27 | Expired |
| USD260305S | Lighted traveling mirror | General | 22 | Expired |
| USD265247S | Massager | General | 12 | Expired |
| US4768655A | Message organizer | Performing Operations; Transporting | 11 | Expired |
| USD251600S | Paper punch | General | 10 | Expired |
| USD248055S | Brayer | General | 8 | Expired |
| USD340291S | Ladder pail shelf | General | 8 | Expired |
| USD253007S | Cartridge for water sanitization chemicals | General | 8 | Expired |
| US4959628A | Rotating electric switch actuated by fixed magnetic means, usable for a surface cleaning device | Human Necessities | 7 | Expired |
| US4760951A | Disposable spray hood | Emerging Cross-Sectional Technologies | 6 | Expired |
| USD255945S | Lighted traveling mirror | General | 2 | Expired |
| USD260727S | Nail holder | General | 2 | Expired |
| USD286032S | Infant walker | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.