Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11407161 | Finned mold block | Manfred A. A. Lupke | 2022-08-09 |
| 11156316 | Pipe coupling | Manfred A. A. Lupke | 2021-10-26 |
| 11148342 | Air pressure control for corrugator | Manfred A. A. Lupke | 2021-10-19 |
| 11052593 | Die head and die tooling spider with spider legs having curved flow guides | Manfred A. A. Lupke | 2021-07-06 |
| 11034073 | Method for forming inline triple wall coupling connector | Manfred A. A. Lupke | 2021-06-15 |
| 10279536 | System and method for identifying thermal expansion issues in a corrugator | Manfred A. A. Lupke | 2019-05-07 |
| 9969119 | Mold block return | Manfred A. A. Lupke | 2018-05-15 |
| 9958661 | Apparatus for structured illumination of a specimen | Roland Stange | 2018-05-01 |
| 9612428 | Apparatus for confocal observation of a specimen | Kaupo Palo, Peet Kask | 2017-04-04 |
| 8684719 | Die tooling for extruding tubular product | Manfred A. A. Lupke | 2014-04-01 |
| 8146620 | Non-circular pipe profile | Manfred A. A. Lupke | 2012-04-03 |
| 8075295 | Alignable cooling plug for extruder | Manfred A. A. Lupke | 2011-12-13 |
| 7976753 | Method of forming corrugated pipe with a pipe spigot seal seat | Manfred A. A. Lupke | 2011-07-12 |
| 7798796 | Pipe extruding system with cooling plug separation | Manfred A. A. Lupke | 2010-09-21 |
| 7691317 | Method and device for manufacturing a double-walled, thermoplastic tube with a connecting sleeve | Manfred A. A. Lupke | 2010-04-06 |
| 7625196 | Device for manufacturing a double-walled, thermoplastic tube with a connecting sleeve | Manfred A. A. Lupke | 2009-12-01 |
| 7524177 | Pipe molding system with vacuum and temperature controls of cooling plugs | Manfred A. A. Lupke | 2009-04-28 |
| 7517209 | Molding apparatus with mold blocks having profiled face adjustment | Manfred A. A. Lupke | 2009-04-14 |
| 7311509 | Externally cooled moving mold | Manfred A. A. Lupke | 2007-12-25 |
| 7267535 | Pipe molding apparatus with mold tunnel air turbulence | Manfred A. A. Lupke | 2007-09-11 |
| 7264457 | Flow distributor for die tooling of pipe mold equipment with remote extruder | Manfred A. A. Lupke | 2007-09-04 |
| 7214051 | Device for manufacturing a double-walled thermoplastic pipe with a connecting sleeve | Manfred A. A. Lupke | 2007-05-08 |
| 7104777 | Pipe mold with compensation for pipe shrinkage | Manfred A. A. Lupke | 2006-09-12 |
| 7013778 | Tube cutting device | Manfred A. A. Lupke | 2006-03-21 |
| 6905325 | Pipe mold with compensation for pipe shrinkage | Manfred A. A. Lupke | 2005-06-14 |