Issued Patents All Time
Showing 26–50 of 98 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5044451 | Device for forming an undercut in a drilled hole | — | 1991-09-03 |
| 5032046 | Threaded bolt assembly to be anchored in a drilled hole with an undercut and a method of anchoring the same | — | 1991-07-16 |
| 5031709 | Drilling apparatus for producing drilled holes having an undercut | — | 1991-07-16 |
| 5030043 | Driving-in device for fixing an anchor in a hole | Gunter Seibold | 1991-07-09 |
| 5002489 | Dental prosthesis | H. -J. Weber, Gunter Rubeling | 1991-03-26 |
| 5002445 | Expansible plug assembly to be anchored in a hole drilled in masonry | — | 1991-03-26 |
| 4993894 | Drill | Willi Haug | 1991-02-19 |
| 4992010 | Device for forming an undercut in a drilled hole | — | 1991-02-12 |
| 4986711 | Anchoring plug | — | 1991-01-22 |
| 4968199 | Expansible plug to be percussion anchored in a borehole that tapers outward at an inner end thereof | Manfred Haage | 1990-11-06 |
| 4964476 | Drilling device for producing drill holes with an undercut | — | 1990-10-23 |
| 4962820 | Device for producing drill holes having an undercut | — | 1990-10-16 |
| 4943195 | Expansible anchoring plug assembly | — | 1990-07-24 |
| 4940372 | Anchoring plug | — | 1990-07-10 |
| 4929127 | Drill bit for producing drilled holes with an undercut | — | 1990-05-29 |
| 4921383 | Plastic expansible plug | — | 1990-05-01 |
| 4915223 | Expansible plug device | — | 1990-04-10 |
| 4905872 | Vessel for injecting bonding agent | — | 1990-03-06 |
| 4904134 | Spreading plug for anchoring in undercut boreholes | — | 1990-02-27 |
| 4895544 | Toy construction kit | — | 1990-01-23 |
| 4893974 | Composite plug for mounting objects in a drilled hole in masonry | Jörg Fischer | 1990-01-16 |
| 4842461 | Anchoring assembly | — | 1989-06-27 |
| 4815904 | Drilling assembly for making boreholes with undercuts | — | 1989-03-28 |
| 4789285 | Anchoring plug | — | 1988-12-06 |
| 4763396 | Method and device for preventing corrosion of an expandable mounting element anchored in a mounting hole | — | 1988-08-16 |