John I. Andersen
14Patents
7h-index
5Co-inventors
59Inventor score
Filing activity: Sep 19, 1977 → Jun 12, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6540246B2 | Ranch hitch adapter | Performing Operations; Transporting | 24 | Expired |
| US6732906B2 | Tapered tower manufacturing method and apparatus | Performing Operations; Transporting | 16 | Expired |
| US7878525B2 | Fifth wheel hitch system | Emerging Cross-Sectional Technologies | 10 | Active |
| US7222510B2 | Systems and methods for manufacturing a drop bar | Performing Operations; Transporting | 10 | Expired |
| US6908099B2 | Systems and methods for providing aluminum hitch components | Performing Operations; Transporting | 9 | Expired |
| US4979494A | Method and apparatus for generating thermal energy | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4250867A | Heating unit | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7156412B2 | Systems and methods for providing an aluminum bar for towing | Performing Operations; Transporting | 7 | Expired |
| US8523217B2 | Vehicle frame for trailer coupler system | Performing Operations; Transporting | 6 | Active |
| US5375890A | Thermo lock-n-seal tube end for polyethylene pipe | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| USD251797S | Stove | General | 2 | Expired |
| US10723188B2 | Lightweight gooseneck-mounted trailer hitch | Performing Operations; Transporting | 1 | Active |
| US9395170B2 | Adjustable radius gauge | Physics | 0 | Active |
| US11541706B2 | Trailer coupler system | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.