Mark Campbell
21Patents
7h-index
22Co-inventors
69Inventor score
Filing activity: Nov 19, 1986 → Dec 10, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6144938A | Voice user interface with personality | Electricity | 719 | Expired |
| US6334103A | Voice user interface with personality | Electricity | 418 | Expired |
| US7266499B2 | Voice user interface with personality | Electricity | 218 | Expired |
| USD450574S | Set of packages for deviled eggs | General | 33 | Expired |
| US5182805A | Method and system for determining copy-on-write condition | Physics | 31 | Expired |
| US7058577B2 | Voice user interface with personality | Electricity | 22 | Expired |
| US11132752B2 | Integrity management system to manage and control data between entities in an oil and gas asset supply chain | Physics | 13 | Active |
| USD340637S | Decorative door or cabinet knob | General | 7 | Expired |
| USD314465S | Jacket | General | 6 | Expired |
| US9055147B2 | Voice user interface with personality | Electricity | 6 | Active |
| US10397245B2 | Interface with secure intermediary platform to generate data compatible with an external system in an oil and gas asset supply chain | Electricity | 3 | Active |
| US5152391A | Hopper feed elevator | Performing Operations; Transporting | 2 | Expired |
| US10938192B2 | Cable cleat assembly | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11203855B2 | Universal water fountain filter head | Chemistry; Metallurgy | 1 | Active |
| US5348141A | Material handling system | Performing Operations; Transporting | 1 | Expired |
| US10488159B2 | Method, system and apparatus for implementing shooting sports | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7678037B2 | Process for assembling a bag | Performing Operations; Transporting | 1 | Active |
| US11699196B2 | Creating secure data in an oil and gas supply chain | Physics | 0 | Active |
| US11732447B2 | Universal water fountain filter head | Chemistry; Metallurgy | 0 | Active |
| US10438012B2 | Interface to generate data compatible with an external system in an oil and gas asset supply chain | Physics | 0 | Active |
| US10923892B2 | Cable cleat assembly | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.