Pfeiffer; Hans C.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Pfeiffer; Hans C..The latest application filed is for "multi-beam hybrid solenoid lens electron beam system".

Company Profile

0.17.1

Pfeiffer; Hans C. - Ridgefield CT

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Multi-beam hybrid solenoid lens electron beam system Grant 6,710,361 - Pfeiffer , et al. March 23, 2	2004-03-23
Multi-beam hybrid solenoid lens electron beam system App 20030197131 - Pfeiffer, Hans C. ; et al.	2003-10-23
Solenoid electron beam lenses with high demagnification and low aberrations Grant 6,633,040 - Pfeiffer , et al. October 14, 2	2003-10-14
Multi-element deflection aberration correction for electron beam lithography Grant 6,180,947 - Stickel , et al. January 30, 2	2001-01-30
Particle beam system with dynamic focusing Grant 6,130,432 - Pfeiffer , et al. October 10, 2	2000-10-10
Electron beam lithography system with low brightness Grant 5,633,507 - Pfeiffer , et al. May 27, 1	1997-05-27
Electron beam lithography system Grant 5,466,904 - Pfeiffer , et al. November 14, 1	1995-11-14
Electron beam contactless testing system with grid bias switching Grant 4,843,330 - Golladay , et al. June 27, 1	1989-06-27
Variable axis immersion lens electron beam projection system Grant 4,544,846 - Langner , et al. October 1, 1	1985-10-01
System for contactless electrical property testing of multi-layer ceramics Grant 4,417,203 - Pfeiffer , et al. November 22, 1	1983-11-22
System for contactless testing of multi-layer ceramics Grant 4,415,851 - Langner , et al. November 15, 1	1983-11-15
Variable axis electron beam projection system Grant 4,376,249 - Pfeiffer , et al. March 8, 1	1983-03-08
Compensated magnetic deflection coil for electron beam lithography system Grant 4,251,728 - Pfeiffer , et al. February 17, 1	1981-02-17
Method and apparatus for forming a variable size electron beam Grant 4,243,866 - Pfeiffer , et al. January 6, 1	1981-01-06
Electron beam system with character projection capability Grant 4,213,053 - Pfeiffer July 15, 1	1980-07-15
Method and apparatus for controlling brightness and alignment of a beam of charged particles Grant 4,000,440 - Hall , et al. December 28, 1	1976-12-28
Shielded magnetic lens and deflection yoke structure for electron beam column Grant 3,984,687 - Loeffler , et al. October 5, 1	1976-10-05
Method and apparatus for aligning electron beams Grant 3,894,271 - Pfeiffer , et al. July 8, 1	1975-07-08

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