Marion Johnson
11Patents
6h-index
15Co-inventors
63Inventor score
Filing activity: Jun 26, 1984 → Apr 19, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7188427B2 | Multi-task protractor | Physics | 16 | Expired |
| US4872573A | Plastic closure with barrier coating | Performing Operations; Transporting | 14 | Expired |
| US4552717A | Process for making a thin walled container from a plastic resin | Performing Operations; Transporting | 11 | Expired |
| US5468010A | Hand truck apparatus | Performing Operations; Transporting | 10 | Expired |
| US4611987A | Apparatus for forming multilayer thermoplastic resin extrusions | Performing Operations; Transporting | 9 | Expired |
| US4879138A | Composition for plastic article with unitarily molded foam layer | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4536148A | Apparatus for making a thin walled container from a plastic resin | Performing Operations; Transporting | 6 | Expired |
| US4866100A | Composition for plastic article with unitarily molded foam layer | Emerging Cross-Sectional Technologies | 4 | Expired |
| US12415653B2 | Reclosable bag having a repulpable zipper | Performing Operations; Transporting | 0 | Active |
| US11858693B2 | Hinged zipper assembly of a resealable enclosure | Performing Operations; Transporting | 0 | Active |
| US12396525B2 | Zipper assemblies having post-consumer recyclate material | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.