Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8348540 | Writing instrument containing a granular material in the ink chamber | Didier Lange, Franck Rolion | 2013-01-08 |
| 8104983 | Combination writing instrument | Kenneth R. Cooper, David Anthony Edgerley, Douglas Hungerford, Didier Lange, Robert Edward Matthews +2 more | 2012-01-31 |
| 8096725 | Writing implement comprising a device for venting the reservoir | Didier Lange, Franck Rolion | 2012-01-17 |
| 8007195 | Writing implement with pivoting roller | Didier Lange, Franck Rolion | 2011-08-30 |
| 7470079 | Writing article having a capillary reservoir with improved ink delivery | Didier Lange | 2008-12-30 |
| 7396179 | Writing instrument including a valve feeder device | Didier Lange, Franck Rolion | 2008-07-08 |
| D552682 | Eraser for a white board | Franck Rolion, Juliette Bonnamour, Vincent Prigent, Didier Lange | 2007-10-09 |
| 7156573 | Writing implement fitted with support means for the writing tip | — | 2007-01-02 |
| 7147392 | Combination writing instrument | Kenneth R. Cooper, David Anthony Edgerley, Douglas Hungerford, Didier Lange, Robert Edward Matthews +3 more | 2006-12-12 |
| 7048459 | Liquid ink writing instrument with a shape memory valve | Jose Duez, Didier Lange | 2006-05-23 |
| D520561 | White board | Franck Rolion, Juliette Bonnamour, Vincent Prigent, Didier Lange | 2006-05-09 |
| 6893181 | Nib and methods of treating an elongate element designed to form such a nib | Jose Duez, Philippe Chavatte | 2005-05-17 |
| 6644880 | Writing article whose writing tip includes a drying retardant and process for the manufacture of such a tip | Jose Duez | 2003-11-11 |
| 6197234 | Method for increasing the anti-wettability of a body | Pierre Goudmand, Odile Dessaux, Jean-Denis Quensierre, Philippe Chavatte, Jose Duez | 2001-03-06 |
| 6074534 | Method of increasing the wettability of a porous body | P. Goudmand, Odile Dessaux, Jean-Denis Quensierre, Philippe Chavatte, Jose Duez | 2000-06-13 |
| 5927885 | Buffer reservoir for a liquid-ink writing instrument, and a writing instrument including such a reservoir | Jose Duez | 1999-07-27 |