Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7628577 | Vacuum pumps with improved pumping channel configurations | — | 2009-12-08 |
| 7445422 | Hybrid turbomolecular vacuum pumps | — | 2008-11-04 |
| 7223064 | Baffle configurations for molecular drag vacuum pumps | — | 2007-05-29 |
| 6767192 | Vapor jet pump with ejector stage in foreline | — | 2004-07-27 |
| 6607351 | Vacuum pumps with improved impeller configurations | — | 2003-08-19 |
| 6394747 | Molecular drag vacuum pumps | — | 2002-05-28 |
| 6220824 | Self-propelled vacuum pump | — | 2001-04-24 |
| 6193461 | Dual inlet vacuum pumps | — | 2001-02-27 |
| 6179573 | Vacuum pump with inverted motor | — | 2001-01-30 |
| 5947694 | Scroll-type vacuum pumping apparatus | — | 1999-09-07 |
| 5709528 | Turbomolecular vacuum pumps with low susceptiblity to particulate buildup | — | 1998-01-20 |
| 5600136 | Single potential ion source | Asoka Ratnam | 1997-02-04 |
| 5577881 | High performance turbomolecular vacuum pumps | — | 1996-11-26 |
| 5498125 | High performance turbomolecular vacuum pumps | — | 1996-03-12 |
| 5490761 | High performance turbomolecular vacuum pumps | — | 1996-02-13 |
| 5482430 | High performance turbomolecular vacuum pumps | — | 1996-01-09 |
| 5374160 | High performance turbomolecular vacuum pumps | — | 1994-12-20 |
| 5358373 | High performance turbomolecular vacuum pumps | — | 1994-10-25 |
| 4191512 | Apparatus and method for controlling pressure ratio in high vacuum vapor pumps | Charles D. O'Neal, III, Leo J. Blumle | 1980-03-04 |