David W. Johnson
110Patents
25h-index
68Co-inventors
93Inventor score
Filing activity: Mar 18, 1976 → May 31, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD685999S1 | Sheet material with camouflage pattern | General | 275 | Active |
| USD679099S1 | Sheet material with camouflage pattern | General | 270 | Active |
| US9616623B2 | 3D thermoplastic composite pultrusion system and method | Physics | 110 | Active |
| US9764520B2 | 3D thermoplastic composite pultrusion system and method | Physics | 110 | Active |
| US10124546B2 | 3D thermoplastic composite pultrusion system and method | Physics | 109 | Active |
| US9963978B2 | 3D thermoplastic composite pultrusion system and method | Emerging Cross-Sectional Technologies | 109 | Active |
| US9724881B2 | 3D thermoplastic composite pultrusion system and method | Physics | 108 | Active |
| US9610737B2 | 3D thermoplastic composite pultrusion system and method | Physics | 108 | Active |
| US10190424B2 | 3D thermoplastic composite pultrusion system and method | Emerging Cross-Sectional Technologies | 107 | Active |
| US10449737B2 | 3D thermoplastic composite pultrusion system and method | Physics | 107 | Active |
| US8747098B1 | Thermoplastic pultrusion die system and method | Performing Operations; Transporting | 66 | Active |
| US6286281A | Tubular tapered composite pole for supporting utility lines | Fixed Constructions | 59 | Expired |
| US6645333B2 | Method of inserting z-axis reinforcing fibers into a composite laminate | Emerging Cross-Sectional Technologies | 57 | Expired |
| US6676785B2 | Method of clinching the top and bottom ends of Z-axis fibers into the respective top and bottom surfaces of a composite laminate | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4030779A | Inflatable streamlining structure for vehicles | Performing Operations; Transporting | 40 | Expired |
| US4797386A | Superconductor-magnet induced separation | Electricity | 40 | Expired |
| US5644888A | Heavy construction system using composite members | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4899868A | Conveyor for a crop harvester | Human Necessities | 34 | Expired |
| US4715503A | Interlocking joint wine rack | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5222344A | Pole structure | Fixed Constructions | 31 | Expired |
| US4113299A | Rotating magnus tubes | Performing Operations; Transporting | 30 | Expired |
| US7785693B2 | Composite laminate structure | Emerging Cross-Sectional Technologies | 29 | Active |
| US4991726A | Support stand | Fixed Constructions | 28 | Expired |
| US4553663A | Conveyor for a crop harvester | Performing Operations; Transporting | 25 | Expired |
| US4634409A | Idler pulley | Mechanical Engineering; Lighting; Heating | 25 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.