Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D702132 | Beverage caddy | — | 2014-04-08 |
| 6659644 | Plastic bag with arcuate vent pairs | — | 2003-12-09 |
| 6478156 | Headerless bag pack with easy removal opening | — | 2002-11-12 |
| 6231234 | One piece snap closure for a plastic bag | — | 2001-05-15 |
| 5826724 | Double perforation easy tear-off bag | — | 1998-10-27 |
| 5676467 | Slitted plastic bag capable of holding flat, awkward objects | — | 1997-10-14 |
| 5575393 | Stack of cold welded headerless bags | — | 1996-11-19 |
| 5205808 | Method and apparatus for making interfolded boxed bags | — | 1993-04-27 |
| 4790803 | Method of making bottom gusset bag pad arrangement for liquid containers | Ralph M. Roen, Richard C. Dokmo | 1988-12-13 |
| 4769125 | Bottom gusset bag pad arrangement for food containers and method of making same | Ralph M. Roen | 1988-09-06 |
| 4769126 | Bottom gusset bag pad arrangement for liquid containers | Ralph M. Roen, Richard C. Dokmo | 1988-09-06 |
| 4717262 | Flat bottom plastic bag and method of making same | Ralph M. Roen | 1988-01-05 |