David S. Smith
53Patents
14h-index
55Co-inventors
87Inventor score
Filing activity: May 24, 1974 → Apr 7, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6270445A | In-bed exercise machine and method of use | Human Necessities | 179 | Expired |
| USD664499S1 | Energy storage and power supply device | General | 106 | Active |
| US4150949A | Immunoassay for gentamicin | Emerging Cross-Sectional Technologies | 68 | Expired |
| US8080972B2 | System and method for storing and releasing energy | Electricity | 48 | Active |
| US5427291A | Ski carrier and method employing same | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4968409A | Hydrocarbon processing of gas containing feed in a countercurrent moving catalyst bed | Performing Operations; Transporting | 43 | Expired |
| US5076908A | Method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed | Performing Operations; Transporting | 38 | Expired |
| US6152855A | In-bed exercise machine and method of use | Human Necessities | 35 | Expired |
| US6918281B2 | Gas sensor calibration system | Physics | 25 | Expired |
| US9712257B1 | Digitally-controlled impedance control for dynamically generating drive strength for a transmitter | Electricity | 18 | Active |
| US9628082B1 | Strength-adjustable driver | Electricity | 17 | Active |
| US3977568A | Biological fluid dispenser for dispensing micro amounts | Performing Operations; Transporting | 16 | Expired |
| US5733440A | Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed | Performing Operations; Transporting | 15 | Expired |
| US4687382A | System for controlling solid transport | Performing Operations; Transporting | 14 | Expired |
| US4401764A | Immunoassays employing labeled reagent and a conjugate having two binding sites | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7166825B1 | Solar calibration device and method | Physics | 14 | Expired |
| US4685842A | System for controlling solid transport | Performing Operations; Transporting | 14 | Expired |
| US3936854A | Apparatus for developing photosensitive material | Physics | 13 | Expired |
| US5599440A | Catalyst method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed | Performing Operations; Transporting | 11 | Expired |
| US8613166B2 | Collapsible temporary housing system stackable upon others for transport | Fixed Constructions | 11 | Active |
| US4160818A | Fluorimetric immunoassay for diphenylhydantoin | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4578360A | Specific binding assay conjugate with spaced-apart receptors | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5302357A | Apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed | Performing Operations; Transporting | 10 | Expired |
| US4637985A | Assay processes and materials therefor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5498327A | Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed | Performing Operations; Transporting | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.