| 9189107 |
Eraser for use with optical interactive surface |
Scott Wilson, Peter W. Hildebrandt |
2015-11-17 |
| 9027015 |
Interactive communication system having an integrated key drive system |
Peter W. Hildebrandt, Ian G. Hutchinson, Michael H. Dunn, Neal A. Hofmann, Scott Wilson +3 more |
2015-05-05 |
| 8890842 |
Eraser for use with optical interactive surface |
Scott Wilson, Peter W. Hildebrandt |
2014-11-18 |
| 8723815 |
Interactive communication systems |
Peter W. Hildebrandt, Ian G. Hutchinson, Michael H. Dunn, Neal A. Hofmann, Scott Wilson +3 more |
2014-05-13 |
| 8355892 |
Remote diagnostics for electronic whiteboard |
Brand C. Kvavle, Neal A. Hofmann, David W. Behner, Louis A. Ashford |
2013-01-15 |
| 8243028 |
Eraser assemblies and methods of manufacturing same |
Peter W. Hildebrandt, Ning Hui |
2012-08-14 |
| 7750892 |
Portable interactive communication systems |
Peter W. Hildebrandt, Ian G. Hutchinson, Michael H. Dunn, Neal A. Hofmann, Scott Wilson +3 more |
2010-07-06 |
| 7242394 |
Slidable electronic whiteboard system |
Sudhakar S. Lahade, Mark A. Zeh, Michael H. Dunn, Peter W. Hildebrandt |
2007-07-10 |