HP

Hans C. Pfeiffer

IBM: 21 patents #5,175 of 70,183Top 8%
NI Nikon: 2 patents #1,269 of 2,493Top 55%
Overall (All Time): #186,588 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6710361 Multi-beam hybrid solenoid lens electron beam system Michael S. Gordon, Maris A. Sturans 2004-03-23
6633040 Solenoid electron beam lenses with high demagnification and low aberrations Maris A. Sturans 2003-10-14
6296976 Compensation of within-subfield linewidth variation in e-beam projection lithography Timothy R. Groves, Steven D. Golladay 2001-10-02
6180947 Multi-element deflection aberration correction for electron beam lithography Werner Stickel, Michael S. Gordon, Steven D. Golladay 2001-01-30
6130432 Particle beam system with dynamic focusing Joseph J. Senesi, Maris A. Sturans 2000-10-10
6069684 Electron beam projection lithography system (EBPS) Steven D. Golladay, Paul F. Petric, Werner Stickel 2000-05-30
5935739 Manufacturing method for membrane lithography mask with mask fields Thomas Bayer, Johann Greschner, Samuel Kalt, Klaus Meissner 1999-08-10
5674413 Scattering reticle for electron beam systems Werner Stickel 1997-10-07
5633507 Electron beam lithography system with low brightness Werner Stickel 1997-05-27
5545902 Electron beam lithography system Werner Stickel 1996-08-13
5466904 Electron beam lithography system Werner Stickel 1995-11-14
4945246 Tri-deflection electron beam system Donald E. Davis, Cecil T. Ho, Jon E. Lieberman, Maris A. Sturans 1990-07-31
4859856 Telecentric sub-field deflection with vail Timothy R. Groves, Werner Stickel, Maris A. Sturans 1989-08-22
4843330 Electron beam contactless testing system with grid bias switching Steven D. Golladay, Fritz J. Hohn 1989-06-27
4818885 Electron beam writing method and system using large range deflection in combination with a continuously moving table Donald E. Davis, Samuel K. Doran, Merlyn H. Perkins 1989-04-04
4544846 Variable axis immersion lens electron beam projection system Gunther O. Langner, Maris A. Sturans 1985-10-01
4423305 Method and apparatus for controlling alignment of an electron beam of a variable shape 1983-12-27
4417203 System for contactless electrical property testing of multi-layer ceramics Robert A. Simpson, Werner Stickel 1983-11-22
4415851 System for contactless testing of multi-layer ceramics Guenther O. Langner 1983-11-15
4376249 Variable axis electron beam projection system Guenther O. Langner, Maris A. Sturans 1983-03-08
4251728 Compensated magnetic deflection coil for electron beam lithography system Maris A. Sturans 1981-02-17
4243866 Method and apparatus for forming a variable size electron beam Philip M. Ryan, Edward V. Weber 1981-01-06
4213053 Electron beam system with character projection capability 1980-07-15