Richard A. Johnson
169Patents
32h-index
178Co-inventors
93Inventor score
Filing activity: Aug 26, 1974 → Dec 19, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7233861B2 | Prediction of vehicle operator destinations | Physics | 250 | Expired |
| US5993805A | Spray-dried microparticles and their use as therapeutic vehicles | Performing Operations; Transporting | 196 | Expired |
| US5518709A | Preparation of diagnostic agents | Emerging Cross-Sectional Technologies | 167 | Expired |
| US6205477A | Apparatus and method for performing traffic redirection in a distributed system using a portion metric | Electricity | 148 | Expired |
| US8586006B2 | Organ-specific proteins and methods of their use | Physics | 144 | Active |
| US6629890B2 | Safe gaming system | Physics | 109 | Expired |
| US6292832A | System and method for determining a preferred service in a network | Electricity | 102 | Expired |
| US4663725A | Microprocessor based control system and method providing better performance and better operation of a shipping container refrigeration system | Mechanical Engineering; Lighting; Heating | 101 | Expired |
| US5728553A | High purity albumin and method of producing | Chemistry; Metallurgy | 96 | Expired |
| US6034221A | High purity albumin | Chemistry; Metallurgy | 90 | Expired |
| USD392407S | Light fixture | General | 85 | Expired |
| US7152117B1 | Techniques for dynamic host configuration using overlapping network | Electricity | 83 | Expired |
| US4885563A | Power line carrier communication system | Electricity | 74 | Expired |
| US6015546A | Preparation of further diagnostic agents | Human Necessities | 63 | Expired |
| US4882567A | Intrusion detection system and a method therefor | Physics | 60 | Expired |
| US4181014A | Remote well signalling apparatus and methods | Fixed Constructions | 59 | Expired |
| US5957848A | Preparation of further diagnostic agents | Human Necessities | 54 | Expired |
| US6344182B1 | Preparation of diagnostic agents by spray drying | Human Necessities | 54 | Expired |
| US5492547A | Process for predicting the phenotypic trait of yield in maize | Chemistry; Metallurgy | 53 | Expired |
| US5741478A | Preparation of hollow microcapsules by spray-drying an aqueous solution of a wall-forming material and a water-miscible solvent | Human Necessities | 53 | Expired |
| US6298381A | System and method for information retrieval regarding services | Electricity | 51 | Expired |
| US5625041A | Purification of proteins | Chemistry; Metallurgy | 42 | Expired |
| US6068600A | Use of hollow microcapsules | Human Necessities | 40 | Expired |
| US6017310A | Use of hollow microcapsules | Human Necessities | 40 | Expired |
| US7139818B1 | Techniques for dynamic host configuration without direct communications between client and server | Electricity | 39 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.