Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6948898 | Alignment of semiconductor wafers and other articles | Frank E. Kretz | 2005-09-27 |
| 6935830 | Alignment of semiconductor wafers and other articles | Frank E. Kretz | 2005-08-30 |
| 6688662 | Detection and handling of semiconductor wafers and wafer-like objects | Sean A. Casarotti, Frank E. Kretz | 2004-02-10 |
| 6665583 | Article holders with sensors detecting a type of article held by the holder | Frank E. Kretz, Sean A. Casarotti | 2003-12-16 |
| 6638004 | Article holders and article positioning methods | Frank E. Kretz, Sean A. Casarotti | 2003-10-28 |
| 6631935 | Detection and handling of semiconductor wafer and wafer-like objects | Sean A. Casarotti, Frank E. Kretz | 2003-10-14 |
| 6615113 | Articles holders with sensors detecting a type of article held by the holder | Frank E. Kretz, Sean A. Casarotti | 2003-09-02 |
| 5920617 | Sensor system with PT1 measuring device | Harald C. Ott | 1999-07-06 |
| 5798517 | Sun tracker system for a solar assembly | — | 1998-08-25 |
| 5730117 | Sun tracker | — | 1998-03-24 |
| 5600124 | Sun tracker system for a solar assembly | — | 1997-02-04 |
| 5025201 | Segmented resolver | — | 1991-06-18 |