Issued Patents All Time
Showing 1–25 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8631848 | Apparatus and method for producing waterproof structural corrugated paperboard | Michael B. Hladilek | 2014-01-21 |
| 7998300 | Apparatus and method for producing waterproof structural corrugated paperboard | Michael B. Hladilek | 2011-08-16 |
| 7922954 | Building wall panels of hollow core construction | — | 2011-04-12 |
| 7896999 | Method of forming open core web elements | Michael B. Hladilek, David G. Flessert | 2011-03-01 |
| 7866103 | Building wall panels of hollow core construction | — | 2011-01-11 |
| 7770342 | Hollow core floor and deck element | — | 2010-08-10 |
| 7459049 | Method and apparatus for manufacturing open core elements from web material | — | 2008-12-02 |
| 7296792 | Self-valving vacuum distribution for a belt-driven sheet conveyor | John J. Kondratuk | 2007-11-20 |
| 6782933 | Single facer quick change corrugating rolls | — | 2004-08-31 |
| 6733432 | Single facer with resilient small diameter corrugating roll | — | 2004-05-11 |
| 6623416 | Single facer with resilient small diameter corrugating roll | Dennis L. Lemke, Robert W. Klimowski, Eric J. Obermeyer | 2003-09-23 |
| 6602375 | Single facer drive apparatus | — | 2003-08-05 |
| 6311754 | Single facer with small corrugating roll supported by independently mounted backing rolls | — | 2001-11-06 |
| 6171427 | High speed corrugator single facer with steam injection | David Hess, Gale G. Hoyer, Keith R. Kornuth | 2001-01-09 |
| 6170549 | Single facer with resilient small diameter corrugating roll | — | 2001-01-09 |
| 6149751 | Low pressure single facer | — | 2000-11-21 |
| 6074520 | Heated holddown mat for corrugator double backer | Matthew Chuzles, Kenneth D. Danielson | 2000-06-13 |
| RE36687 | Method and apparatus for making pallet supports and pallets incorporating said supports | Harold D. Welch | 2000-05-09 |
| 6048429 | Production of double wall corrugated web | James A. Cummings | 2000-04-11 |
| 6044575 | Condensate removal from high speed roll | — | 2000-04-04 |
| 6018870 | Sectional construction for axially long roll | Dean David Marschke, Kenneth D. Danielson | 2000-02-01 |
| 6012501 | Single facer with small intermediate corrugating roll and variable wrap arm device | — | 2000-01-11 |
| 6006806 | Laminated corrugating roll | — | 1999-12-28 |
| 5996246 | Edge seal for vacuum preheater | — | 1999-12-07 |
| 5967044 | Quick change ink supply for printer | — | 1999-10-19 |