John A. Lewis
25Patents
13h-index
22Co-inventors
81Inventor score
Filing activity: Aug 24, 1973 → Jan 29, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4813426A | Shielded safety syringe having a retractable needle | Human Necessities | 245 | Expired |
| US4813935A | Urinary catheter | Human Necessities | 151 | Expired |
| US4950250A | Collapsible needle cover | Human Necessities | 123 | Expired |
| US4710179A | Snap-on vernier syringe | Human Necessities | 113 | Expired |
| US4820275A | Retractable needle syringe with integral spring | Human Necessities | 96 | Expired |
| US4927019A | Combination needle sheath and sterility package | Human Necessities | 86 | Expired |
| US4867172A | Collapsible blood collector | Human Necessities | 75 | Expired |
| US5094148A | Piston stem insert for a carpule based piston | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5226894A | Safety syringe assembly with radially deformable body | Human Necessities | 56 | Expired |
| US5098382A | Safety module-activator reshielding tool | Human Necessities | 45 | Expired |
| US5333971A | Interlocking bulkhead | Fixed Constructions | 34 | Expired |
| US8546123B2 | Production of poliovirus at high titers for vaccine production | Emerging Cross-Sectional Technologies | 32 | Active |
| US3955364A | Engine deceleration vacuum differential valve control | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5521082A | Novel process for purification of hepatitis a virions | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7094767B2 | Polynucleotide herpes virus vaccine | Chemistry; Metallurgy | 10 | Expired |
| US4296447A | Magnetic recording and reproduction | Physics | 9 | Expired |
| US3930475A | Engine exhaust gas recirculating control | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4016579A | Flash mounting means for camera with folding viewfinder | Physics | 8 | Expired |
| US3967302A | Accessory attachment for photographic apparatus | Physics | 6 | Expired |
| US4185905A | Dual purpose flash/strobe socket assembly for a photographic camera | Physics | 1 | Expired |
| US4044734A | Exhaust gas recirculation valve malfunction indicator apparatus | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US9022240B2 | Production of poliovirus at high titers for vaccine production | Emerging Cross-Sectional Technologies | 1 | Active |
| US10238730B2 | Cold-adapted-viral-attenuation (CAVA) and novel attenuated poliovirus strains | Emerging Cross-Sectional Technologies | 0 | Active |
| US11371097B2 | Articles for diagnosis of liver fibrosis | Physics | 0 | Active |
| US10041049B2 | Method for the production of adenoviral vectors | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.