Robert J. Cotter
36Patents
15h-index
35Co-inventors
81Inventor score
Filing activity: Feb 4, 1976 → Sep 19, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5464985A | Non-linear field reflectron | Electricity | 88 | Expired |
| US5696376A | Method and apparatus for isolating ions in an ion trap with increased resolving power | Electricity | 61 | Expired |
| US5572025A | Method and apparatus for scanning an ion trap mass spectrometer in the resonance ejection mode | Electricity | 60 | Expired |
| US5202563A | Tandem time-of-flight mass spectrometer | Electricity | 59 | Expired |
| US5399857A | Method and apparatus for trapping ions by increasing trapping voltage during ion introduction | Electricity | 48 | Expired |
| US4608404A | Epoxy compositions containing oligomeric diamine hardeners and high strength composites therefrom | Chemistry; Metallurgy | 45 | Expired |
| US4661559A | Impact resistant matrix resins for advanced composites | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4849503A | Novel poly(aryl ethers) | Chemistry; Metallurgy | 36 | Expired |
| US4760106A | Impact resistant matrix resins for advanced composites | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5101105A | Neutralization/chemical reionization tandem mass spectrometry method and apparatus therefor | Electricity | 23 | Expired |
| US7825374B2 | Tandem time-of-flight mass spectrometer | Electricity | 21 | Expired |
| US4594404A | Polycarbonates having improved hydrolytic stability | Chemistry; Metallurgy | 20 | Expired |
| US6518568B1 | Method and apparatus of mass-correlated pulsed extraction for a time-of-flight mass spectrometer | Electricity | 19 | Expired |
| US4263413A | Half esters of organic polyols and a process for their production | Chemistry; Metallurgy | 16 | Expired |
| US5814813A | End cap reflection for a time-of-flight mass spectrometer and method of using the same | Electricity | 15 | Expired |
| US7372021B2 | Time-of-flight mass spectrometer combining fields non-linear in time and space | Electricity | 12 | Expired |
| US4229559A | Novel bis(half ester) and compositions containing the same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7271397B2 | Combined chemical/biological agent detection system and method utilizing mass spectrometry | Electricity | 11 | Expired |
| US5624332A | Golf ball core patching method | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6365892B1 | Method and apparatus for correction of initial ion velocity in a reflectron time-of-flight mass spectrometer | Electricity | 9 | Expired |
| US4003848A | Method for the adsorption of sulfur dioxide | Performing Operations; Transporting | 9 | Expired |
| US5159028A | Process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers) | Chemistry; Metallurgy | 5 | Expired |
| US5077351A | Process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers) | Chemistry; Metallurgy | 5 | Expired |
| US4814419A | Polyarylether sulfones useful for molding into a circuit board substrate | Chemistry; Metallurgy | 4 | Expired |
| US7045777B2 | Combined chemical/biological agent mass spectrometer detector | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.