Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6410923 | Magnetic lens apparatus for use in high-resolution scanning electron microscopes and lithographic processes | — | 2002-06-25 |
| 6051839 | Magnetic lens apparatus for use in high-resolution scanning electron microscopes and lithographic processes | — | 2000-04-18 |
| 5818605 | Method and apparatus for high resolution sensing of engraving stylus movement | George B. Thiel, Douglas R. Adler, Riyazhassan M. Asaria | 1998-10-06 |
| 5563415 | Magnetic lens apparatus for a low-voltage high-resolution electron microscope | — | 1996-10-08 |
| 5336891 | Aberration free lens system for electron microscope | — | 1994-08-09 |
| 5150001 | Field emission electron gun and method having complementary passive and active vacuum pumping | — | 1992-09-22 |
| 5008549 | High performance, vacuum compatible electromagnetic lens coil | — | 1991-04-16 |
| 4833362 | Encapsulated high brightness electron beam source and system | — | 1989-05-23 |
| 4760567 | Electron beam memory system with ultra-compact, high current density electron gun | — | 1988-07-26 |
| 4740705 | Axially compact field emission cathode assembly | — | 1988-04-26 |
| 4725736 | Electrostatic electron gun with integrated electron beam deflection and/or stigmating system | — | 1988-02-16 |
| 4414474 | Corrector for axial aberrations in electron optic instruments | — | 1983-11-08 |
| 4389571 | Multiple sextupole system for the correction of third and higher order aberration | — | 1983-06-21 |
| 4303864 | Sextupole system for the correction of spherical aberration | David A. Kopf | 1981-12-01 |