Robert A. Marshall
43Patents
16h-index
22Co-inventors
81Inventor score
Filing activity: Jan 26, 1978 → Apr 19, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5245533A | Marketing research method and system for management of manufacturer's discount coupon offers | Emerging Cross-Sectional Technologies | 215 | Expired |
| US5503891A | Flexible magnet attractant display mat | Emerging Cross-Sectional Technologies | 120 | Expired |
| US7509505B2 | Method and system for managing power delivery for power over Ethernet systems | Emerging Cross-Sectional Technologies | 76 | Expired |
| US4208652A | Method and apparatus for identifying images | Physics | 55 | Expired |
| US7026730B1 | Integrated connector unit | Electricity | 49 | Expired |
| US4853882A | System and method for protecting against redundant mailings | Physics | 44 | Expired |
| US7061142B1 | Inline power device detection | Electricity | 37 | Expired |
| US6561836B1 | System and method for coupling a communication signal to a communication device | Electricity | 32 | Expired |
| US7085839B1 | Network content management | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4166540A | Document sorter utilizing cascaded sorting steps | Physics | 31 | Expired |
| US4446377A | Low collapse speed lube oil pumping system for turbomachinery | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US6973499B1 | Ticketing and keying for orchestrating distribution of network content | Electricity | 28 | Expired |
| US4937742A | Automated system for statistically analyzing data characteristics of shipments of coupons to identify instances of coupon shipment parametric abnormalities | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6790097B1 | System and method for preventing cable discharge events | Electricity | 20 | Expired |
| US6972687B1 | System and method for detecting a structure failure | Physics | 16 | Expired |
| US7190091B1 | Selectable source input power supply | Electricity | 16 | Expired |
| US4345753A | Process and apparatus for aligning paper documents | Performing Operations; Transporting | 15 | Expired |
| US4266154A | Permeable mesh current collector for DC machines | Electricity | 15 | Expired |
| US7105947B1 | Method and system for voltage tracking and sequencing in a power supply | Electricity | 12 | Expired |
| US4805403A | Engine exhaust system | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US7767903B2 | System and method for thermal to electric conversion | Emerging Cross-Sectional Technologies | 9 | Active |
| US4843697A | Method of assembling components | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4186321A | Current collector with compliant brush containing liquid metal reservoir | Electricity | 9 | Expired |
| US7366297B1 | Method and system for converting alternating current to ethernet in-line power | Electricity | 7 | Expired |
| US8936683B2 | Synthetic opal and photonic crystal | Emerging Cross-Sectional Technologies | 7 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.