David E. Lutzke
11Patents
8h-index
5Co-inventors
61Inventor score
Filing activity: May 24, 1990 → Dec 8, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD353087S | Scissors | General | 57 | Expired |
| USD350466S | Scissors handle | General | 55 | Expired |
| US5241752A | Pruning tool | Human Necessities | 23 | Expired |
| USD347771S | Tree pruner hook | General | 16 | Expired |
| US5267400A | Serrated shears | Human Necessities | 16 | Expired |
| US5216780A | Handgrip for link chain | Emerging Cross-Sectional Technologies | 12 | Expired |
| USD336835S | Tree pruner hook | General | 10 | Expired |
| US7497368B2 | Universal mounting assembly | Human Necessities | 9 | Active |
| US7185803B1 | Mailbox mounting assembly | Human Necessities | 8 | Active |
| USD343773S | Tree pruner hook | General | 8 | Expired |
| US5337449A | Handgrip for link chain | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.