Ralph Luhm
13Patents
8h-index
3Co-inventors
65Inventor score
Filing activity: Dec 20, 1976 → Mar 6, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4143580A | Lock spindle blind rivet | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5689873A | Tacking fastener | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5273386A | Expandable head rivet | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4919576A | Locking apparatus for blind fasteners | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| USRE39582E1 | Method for replacing a tacking fastener | General | 10 | Expired |
| USRE38664E1 | Method for creating a hole for a permanent fastener that replaces a tacking fastener | General | 9 | Expired |
| US5599147A | Blind rivet with a tapered locking mechanism | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5026234A | Expandable head rivet | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6267684A | Rivets and rivet manufacturing methods | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6519997B2 | Rivet gun | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5580202A | Crowned solid rivet | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4219924A | Process for installing lock spindle blind rivet | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6772500B2 | Method of forming holes for permanent fasteners | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.