Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6908264 | Quick change drill bit | — | 2005-06-21 |
| 6739813 | Plastic encapsulated bolt and anchor assembly | Russell Wilmot | 2004-05-25 |
| 6702660 | Roughening device | Ernst Geiger | 2004-03-09 |
| 6398634 | Hole roughening device and method | Ernst Geiger | 2002-06-04 |
| 5738359 | Expandable band and locking mechanism for installing a flexible sealing element | — | 1998-04-14 |
| 5641256 | Anchoring device for a threaded member | — | 1997-06-24 |
| 5595524 | Grinding apparatus and method which supports a workpiece on the surface being ground | — | 1997-01-21 |
| 5580068 | Liquid filled seal | — | 1996-12-03 |
| 5490750 | Anchoring device for a threaded member | — | 1996-02-13 |
| 5431459 | Band with slotted wedge cams | — | 1995-07-11 |
| 5360241 | Universal saddle tee for pipes | — | 1994-11-01 |
| 5029907 | Band for effecting a seal | — | 1991-07-09 |
| 4993722 | Apparatus and method for improved pipe to manhole sealing | — | 1991-02-19 |
| 4612730 | Mechanical centering apparatus and method | — | 1986-09-23 |
| 4596090 | Spigot grinder and groover | — | 1986-06-24 |
| 4430912 | Cutting apparatus and method | — | 1984-02-14 |
| 4208154 | Core drill | — | 1980-06-17 |