Varian, Inc.
🏢 View company profile →999Patents
45Active
999Granted
47Portfolio score
Filing activity: Jun 13, 1957 → Sep 30, 2008 · 45 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4917556A | Modular wafer transport and processing system | Emerging Cross-Sectional Technologies | 634 | Expired |
| US4670126A | Sputter module for modular wafer processing system | Emerging Cross-Sectional Technologies | 414 | Expired |
| US4572198A | Catheter for use with NMR imaging systems | Human Necessities | 403 | Expired |
| US4764076A | Valve incorporating wafer handling arm | Emerging Cross-Sectional Technologies | 370 | Expired |
| US4868844A | Mutileaf collimator for radiotherapy machines | Human Necessities | 301 | Expired |
| US4726046A | X-ray and electron radiotherapy clinical treatment machine | Human Necessities | 288 | Expired |
| US4589424A | Microwave hyperthermia applicator with variable radiation pattern | Human Necessities | 285 | Expired |
| US6198957A | Radiotherapy machine including magnetic resonance imaging system | Human Necessities | 283 | Expired |
| US4398121A | Mode suppression means for gyrotron cavities | Electricity | 238 | Expired |
| US4851788A | Mode suppressors for whispering gallery gyrotron | Electricity | 229 | Expired |
| US5015914A | Couplers for extracting RF power from a gyrotron cavity directly into fundamental mode waveguide | Electricity | 229 | Expired |
| US4868843A | Multileaf collimator and compensator for radiotherapy machines | Human Necessities | 197 | Expired |
| US3969077A | Alkali metal leak detection method and apparatus | Emerging Cross-Sectional Technologies | 188 | Expired |
| US4836733A | Wafer transfer system | Emerging Cross-Sectional Technologies | 179 | Expired |
| US4875487A | Compressional wave hyperthermia treating method and apparatus | Human Necessities | 155 | Expired |
| US4449885A | Wafer transfer system | Emerging Cross-Sectional Technologies | 151 | Expired |
| US5354381A | Plasma immersion ion implantation (PI.sup.3) apparatus | Electricity | 151 | Expired |
| US4017332A | Solar cells employing stacked opposite conductivity layers | Emerging Cross-Sectional Technologies | 143 | Expired |
| US4705951A | Wafer processing system | Emerging Cross-Sectional Technologies | 142 | Expired |
| US4311427A | Wafer transfer system | Emerging Cross-Sectional Technologies | 142 | Expired |
| US4457359A | Apparatus for gas-assisted, solid-to-solid thermal transfer with a semiconductor wafer | Electricity | 134 | Expired |
| US4987309A | Radiation therapy unit | Physics | 121 | Expired |
| US4338480A | Stacked multijunction photovoltaic converters | Emerging Cross-Sectional Technologies | 120 | Expired |
| US4112306A | Neutron irradiation therapy machine | Human Necessities | 118 | Expired |
| US4512391A | Apparatus for thermal treatment of semiconductor wafers by gas conduction incorporating peripheral gas inlet | Chemistry; Metallurgy | 118 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.