Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6536624 | Sheet material having weakness zones and a system for dispensing the material | Douglas W. Johnson, Dale T. Gracyalny, Thomas N. Kershaw | 2003-03-25 |
| 6464120 | Sheet material having weakness zones and a system for dispensing the material | Douglas W. Johnson, Dale T. Gracyalny, Thomas N. Kershaw | 2002-10-15 |
| 6447864 | Sheet material having weakness zones and a system for dispensing the material | Douglas W. Johnson, Dale T. Gracyalny, Thomas N. Kershaw | 2002-09-10 |
| 6412678 | Sheet material dispensing apparatus and method | Dale T. Gracyalny, David Carpenter, Kamala J. Grasso, Douglas W. Johnson, Peter D. Johnson +3 more | 2002-07-02 |
| 6328255 | Method and apparatus for converting a toilet tissue roll dispenser from a concurrent-roll dispensing mode to a sequential-roll dispensing mode | Victor M. Hodges | 2001-12-11 |
| 6321963 | Sheet material dispensing apparatus and method | Dale T. Gracyalny, David Carpenter, Kamala J. Grasso, Douglas W. Johnson, Peter D. Johnson +3 more | 2001-11-27 |
| 6228454 | Sheet material having weakness zones and a system for dispensing the material | Douglas W. Johnson, Dale T. Gracyalny, Thomas N. Kershaw | 2001-05-08 |
| 6202956 | Dispenser for dispensing toilet tissue from rolls | Kamala J. Grasso, Jason E. Short, Robert Mervar, Douglas W. Johnson, Peter D. Johnson | 2001-03-20 |
| 6036134 | Spindle sleeve for use in apparatus for dispensing product from a roll | — | 2000-03-14 |
| D417109 | Sheet material dispenser | Douglas W. Johnson, Dale T. Gracyalny, Ronald J. Vish | 1999-11-30 |
| 5868342 | Apparatus for dispensing toilet tissue from coreless rolls | Jack A. Rizzuto, Robert H. Dimock | 1999-02-09 |
| 5868275 | Sheet material dispensing system | — | 1999-02-09 |
| D403543 | Paper roll towel support plate for supporting a paper towel on end in a center pull paper towel dispenser | Kamala J. Grasso, Robert D. Schaefer, Ronald J. Vish | 1999-01-05 |
| 5813624 | Apparatus for dispensing toilet tissue from rolls | Kamala J. Grasso, Jason E. Short, Robert Mervar, Douglas W. Johnson, Peter D. Johnson | 1998-09-29 |
| 5765718 | Center pull sheet dispensing apparatus | Kamala J. Grasso, Robert D. Schaefer | 1998-06-16 |
| 5704566 | Paper towel roll with variegated perforations | Rudolph W. Schutz | 1998-01-06 |
| 5669576 | Apparatus for supporting coreless rolls in toilet tissue dispenser | — | 1997-09-23 |
| 5645244 | Dispenser apparatus for dispensing paper sheet material | — | 1997-07-08 |
| 5630526 | Sheet material dispensing system | — | 1997-05-20 |
| 5577686 | Spindle adapter apparatus for paper roll product | — | 1996-11-26 |
| 5495997 | Support apparatus for coreless toilet tissue roll | — | 1996-03-05 |
| 5467935 | Apparatus for supporting a coreless paper roll and for impeding rotation of the roll during paper dispensing | — | 1995-11-21 |
| 5467936 | Apparatus and method for forming coreless paper roll products | — | 1995-11-21 |
| 5453070 | System for manufacturing coreless roll paper products | — | 1995-09-26 |
| 5387284 | Apparatus and method for forming coreless paper roll products | — | 1995-02-07 |