POLYVISION CORPORATION

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS 253
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7664924 System and method to secure a computer system by selective control of write access to a data storage mediumSep 20, 07Feb 16, 10[G06F]
5623129 Code-based, electromagnetic-field-responsive graphic data-acquisition systemJul 27, 94Apr 22, 97[G08C]
5248856 Code-based, electromagnetic-field-responsive graphic data-acquisition systemOct 07, 92Sep 28, 93[G08C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7750892 Portable interactive communication systemsExpiredJun 06, 05Jul 06, 10[G06F]
2008/0165,137 SLIDABLE ELECTRONIC WHITEBOARD SYSTEMAbandonedJul 10, 07Jul 10, 08[G09G]
2006/0176,418 Apparatus and method for mounting interactive unit to flat panel displayAbandonedFeb 03, 06Aug 10, 06[G02F]
2005/0156,952 Interactive display systemsAbandonedJan 20, 04Jul 21, 05[G09G]
2004/0246,236 REMOTE CONTROL FOR ELECTRONIC WHITEBOARDAbandonedJun 02, 03Dec 09, 04[G09G]
2004/0207,606 Sensing the size of a touch point in a touch-sensitive panel employing resistive membranesAbandonedMay 14, 04Oct 21, 04[G09G]
6445384 Electronic whiteboard system eraserExpiredSep 30, 97Sep 03, 02[G09G]
2001/0032,057 Initial calibration of a location sensing whiteboard to a projected displayAbandonedDec 21, 00Oct 18, 01[G01C]
5082355 Technique for manufacturing a light modulating deviceExpiredJan 10, 90Jan 21, 92[G02F]
5080470 Process for manufacturing a light modulating deviceExpiredJan 10, 90Jan 14, 92[G02F]
5078480 Light modulating cellExpiredJan 10, 90Jan 07, 92[G02F]
5074648 Light modulating deviceExpiredJan 10, 90Dec 24, 91[G02F]
5056899 Material for light modulation and manufacturing processesExpiredJan 10, 90Oct 15, 91[G02F]
5054894 Light modulating processExpiredJan 10, 90Oct 08, 91[G02F]
4777329 Graphic input systemExpiredAug 24, 87Oct 11, 88[G08C]
4596635 Electrosensitive media and recording processExpiredAug 26, 85Jun 24, 86[B41M]
4596722 Electrosensitive media and recording processExpiredAug 26, 85Jun 24, 86[B05D]
4538158 Electrosensitive media and recording processExpiredApr 21, 82Aug 27, 85[G01D]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.