Robert E. Ryan
25Patents
12h-index
49Co-inventors
81Inventor score
Filing activity: Feb 20, 1976 → Oct 19, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6367410B1 | Closed-loop dome thermal control apparatus for a semiconductor wafer processing system | Electricity | 567 | Expired |
| US5685914A | Focus ring for semiconductor wafer processing in a plasma reactor | Emerging Cross-Sectional Technologies | 446 | Expired |
| US7617057B2 | Expert system for controlling plant growth in a contained environment | Emerging Cross-Sectional Technologies | 127 | Active |
| US6447636B1 | Plasma reactor with dynamic RF inductive and capacitive coupling control | Electricity | 127 | Expired |
| US5479015A | Multi-image detector assembly | Physics | 111 | Expired |
| US7987632B2 | Expert system for controlling plant growth in a contained environment | Emerging Cross-Sectional Technologies | 100 | Active |
| US5636098A | Barrier seal for electrostatic chuck | Electricity | 49 | Expired |
| US5883778A | Electrostatic chuck with fluid flow regulator | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5934103A | Method and apparatus for production of spin-polarized medical-grade xenon .sup.129 gas by laser optical pumping | Emerging Cross-Sectional Technologies | 31 | Expired |
| US3995678A | Induction stirring in continuous casting | Performing Operations; Transporting | 24 | Expired |
| US4034463A | Method of vertical display of wall paneling | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4200137A | Process and apparatus for the continuous casting of metal using electromagnetic stirring | Performing Operations; Transporting | 14 | Expired |
| US7192575B2 | Antimicrobial composition | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5422721A | Fourier transform spectroscopy by varying the path length difference between the paths in each of a plurality of pairs of optical paths | Physics | 10 | Expired |
| US6447637B1 | Process chamber having a voltage distribution electrode | Electricity | 9 | Expired |
| US4803439A | Glass bead laser amplifier with phase conjugate mirror | Electricity | 9 | Expired |
| US5375816A | Slag detecting device and method | Performing Operations; Transporting | 7 | Expired |
| US6251440A | Pesticidal composition | Human Necessities | 4 | Expired |
| US6800294B1 | Antiparasitic formulation | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5471300A | Apparatus and method for providing a feedback measurement in a laser system | Electricity | 4 | Expired |
| US5781292A | Short path scanning interferometer | Physics | 2 | Expired |
| US6352702B1 | Antimicrobial composition | Human Necessities | 2 | Expired |
| US5825490A | Interferometer comprising translation assemblies for moving a first optical member relative to a second optical member | Physics | 2 | Expired |
| US6472351B1 | Herbicide | Human Necessities | 1 | Expired |
| US5054928A | System for compensating antenna membrane deflection | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.