David J. Marshall
47Patents
18h-index
48Co-inventors
81Inventor score
Filing activity: Nov 21, 1984 → Jan 20, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6913881B1 | Methods and compositions for detecting target sequences | Chemistry; Metallurgy | 149 | Expired |
| US5388354A | Indicators for garment hangers | Performing Operations; Transporting | 67 | Expired |
| US5775553A | Indicator attachment mechanism | Human Necessities | 55 | Expired |
| USD303325S | Garment hanger | General | 51 | Expired |
| US5794363A | Hanger hook for a garment hanger with indicator | Human Necessities | 45 | Expired |
| USD296046S | Hanger for footwear or similar articles | General | 45 | Expired |
| US5884422A | Indicator and garment hanger | Human Necessities | 44 | Expired |
| US5628132A | Indicator and garment hanger | Performing Operations; Transporting | 42 | Expired |
| US5857276A | Hanger hook for a garment hanger with indicator | Human Necessities | 40 | Expired |
| USD301808S | Garment hanger | General | 37 | Expired |
| USD332180S | Combined hanger hook and indicator | General | 31 | Expired |
| US5507086A | Method for assembling clothes hangers with index-coded caps | Emerging Cross-Sectional Technologies | 28 | Expired |
| USD283854S | Garment hanger | General | 25 | Expired |
| US6977161B2 | Solid support assay systems and methods utilizing non-standard bases | Chemistry; Metallurgy | 25 | Expired |
| US6798254B2 | Dynamic control of switching reference voltage | Electricity | 23 | Expired |
| US5272806A | Machine for injection molding and stacking indexing caps for clothes hangers | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6705496B2 | Indicator attachment mechanism and method and apparatus for removing indicators from hangers | Emerging Cross-Sectional Technologies | 22 | Expired |
| USD329754S | Garment hanger | General | 21 | Expired |
| US5285566A | System for assembling clothes hangers with index-coded caps | Emerging Cross-Sectional Technologies | 18 | Expired |
| US7422850B2 | Materials and methods for detection of nucleic acids | Chemistry; Metallurgy | 18 | Expired |
| US6421910B1 | Apparatus for removing indicators from hangers | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6836127B2 | Dual switching reference voltages | Electricity | 16 | Expired |
| US6825699B2 | Charge pump circuit, passive buffer that employs the charge pump circuit, and pass gate that employs the charge pump circuit | Electricity | 15 | Expired |
| US5604975A | Automatic apparatus for assembling hangers with indexing caps | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7541147B2 | Materials and methods for detection of nucleic acids | Chemistry; Metallurgy | 14 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.