David E. Johnson
42Patents
18h-index
29Co-inventors
81Inventor score
Filing activity: Mar 8, 1973 → Nov 17, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5903951A | Molded brush segment | Performing Operations; Transporting | 128 | Expired |
| US5679067A | Molded abrasive brush | Performing Operations; Transporting | 124 | Expired |
| US7114764B1 | Mine and collision protection for passenger vehicle | Performing Operations; Transporting | 98 | Expired |
| US6126533A | Molded abrasive brush | Performing Operations; Transporting | 49 | Expired |
| US6352471B1 | Abrasive brush with filaments having plastic abrasive particles therein | Performing Operations; Transporting | 32 | Expired |
| US5700340A | Method of manufacturing a tape having a succession of surface-type fastener pieces | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5860237A | Sleeve sign and stand | Physics | 27 | Expired |
| USD381139S | Molded abrasive brush | General | 27 | Expired |
| US5915436A | Molded brush | Performing Operations; Transporting | 25 | Expired |
| US4124336A | Poppet check valve for controlled feeding of blowing agent | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4456571A | Process and apparatus for forming a composite foamed polymeric sheet structure having comparatively high density skin layers and a comparatively low density core layer | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5983434A | Rotary bristle tool with preferentially oriented bristles | Performing Operations; Transporting | 23 | Expired |
| US6261156A | Molded abrasive brush | Performing Operations; Transporting | 23 | Expired |
| US4098941A | Polystyrene foam extrusion | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4699808A | Method and apparatus for providing powder into fibrous web structures | Human Necessities | 20 | Expired |
| US5775019A | Sleeve label with tab | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5945183A | Sleeve label with UV curable coating and process for making the same | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5908680A | Replaceable roll covers with repositionable pressure sensitive adhesive | Emerging Cross-Sectional Technologies | 18 | Expired |
| USD378004S | Radial brush segment | General | 18 | Expired |
| US4448737A | Method and apparatus for producing foamed products from a mix of reclaimed plastic foam material and foamable virgin plastic resin | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4526074A | High-speed apparatus and method for trimming thermoformed articles | Emerging Cross-Sectional Technologies | 16 | Expired |
| USD378003S | Molded radial brush | General | 16 | Expired |
| US4545714A | Apparatus and method for forming stacks of nested containers each having a predetermined count of containers | Performing Operations; Transporting | 15 | Expired |
| US4009976A | Apparatus for producing a foamed polystyrene sheet having a density gradient decreasing from the external surfaces inwardly | Performing Operations; Transporting | 15 | Expired |
| US4032289A | Convection oven | Human Necessities | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.