Robert A. Johnson
77Patents
19h-index
58Co-inventors
87Inventor score
Filing activity: Nov 25, 1974 → Oct 2, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6266809A | Methods, systems and computer program products for secure firmware updates | Physics | 140 | Expired |
| US4969834A | Jumper cable apparatus | Electricity | 136 | Expired |
| US9034079B2 | Methods of removing contaminants from hydrocarbon stream by swing adsorption and related apparatus and systems | Emerging Cross-Sectional Technologies | 51 | Active |
| US5372250A | Level and case package | Performing Operations; Transporting | 51 | Expired |
| US8784535B2 | Pressure-temperature swing adsorption process for the separation of heavy hydrocarbons from natural gas streams | Emerging Cross-Sectional Technologies | 49 | Active |
| US5205111A | Packaging method for a level and case | Performing Operations; Transporting | 48 | Expired |
| US5027951A | Apparatus and method for packaging of articles | Performing Operations; Transporting | 47 | Expired |
| US9168485B2 | Methods of removing contaminants from a hydrocarbon stream by swing adsorption and related apparatus and systems | Emerging Cross-Sectional Technologies | 44 | Active |
| US4677905A | Food steaming apparatus | Human Necessities | 31 | Expired |
| USD521399S1 | Level | General | 30 | Expired |
| USD555523S1 | Level | General | 27 | Expired |
| US6830127B2 | Pipeline construction safety platform | Fixed Constructions | 27 | Expired |
| USD634221S1 | Level | General | 25 | Expired |
| USD750511S1 | Box beam level | General | 23 | Active |
| USD582302S1 | Level | General | 22 | Expired |
| US4221962A | Fiber-optic moisture sensor for composite structures | Physics | 22 | Expired |
| US10124286B2 | Apparatus and system for swing adsorption processes related thereto | Emerging Cross-Sectional Technologies | 21 | Active |
| USD633400S1 | Level | General | 21 | Expired |
| US10080991B2 | Apparatus and system for swing adsorption processes related thereto | Emerging Cross-Sectional Technologies | 20 | Active |
| US4416122A | Unitary removable refrigeration system and cooler | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4738042A | Integral moving message device for merchandising display case | Physics | 18 | Expired |
| USD751428S1 | Torpedo level | General | 17 | Active |
| US4189514A | Process of making high-temperature magnetic tape | Emerging Cross-Sectional Technologies | 15 | Expired |
| USD743281S1 | Box beam level | General | 15 | Active |
| USD656425S1 | Hand grip for a level | General | 14 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.