CDT Acquires Important New Patent Portfolio, comments on Phosphorescent UDC patents

CDT announced today that it has acquired an important portfolio of patent rights from Maxdem Inc. The portfolio includes five US patent applications and their foreign equivalents relating to new light emitting polymer compositions and applications. The deal also includes a license to a large number of patents / applications relating to polyphenylene polymers and other polymer compositions and purification methods. These are expected to be useful in future materials improvements.

Included in the acquisition from Maxdem is a patent application for the invention of phosphorescent compositions containing a critical class of polymer materials in combination with metals / metal ions. CDT believes this provides a fundamental position in the use of conjugated polymers to achieve high efficiency phosphorescent emission in solution processable devices, whether for ink jet printing or any other means of solution processing.


1. CDT believes that any solution processable material whether fluorescent or phosphorescent will require the use of conjugated polymers and will therefore fall within its fundamental patents. In addition, CDT also holds the important patent rights on the use of dendrimers in OLEDs, and holds licensing rights to the key Seiko Epson patents relating to ink jet printing in relation to any OLED containing a conjugated polymer. With the Maxdem acquisition, CDT believes that it will now be able to control the use of metal / metal ions in combination with key polymers.

2. CDT notes that UDC has recently announced the grant of its US patent No. 6,982,179, titled "Structure and Method of Fabricating Organic Devices". CDT believes that this patent is limited to standard methods of creating patterned multilayer devices by solution processing, such methods being fully described in prior patents belonging to CDT or within its control.

Posted: Feb 13,2006 by Ron Mertens