32 US and international patent applications cover our composition of matter and spacer systems. Eight patents have been issued to date, four US and four international, covering our basic Heterocyclical Chromophore Architecture and the Tricyclic Spacer systems as follows:


Issued U.S. Patents

US 8 298 326 – Tricyclic Spacer Systems for Nonlinear Optical Devices
Granted October 30, 2012


US 8 269 004 – Heterocyclical Chromophore Architectures
Granted September 18, 2012


US 7 894 695 – Tricyclic Spacer Systems for Nonlinear Optical Devices
Granted February 22, 2011


US 7 919 619 – Heterocyclical Chromophore Architectures
Granted April 5, 2011


Issued European Patents

EUR 1805150 Heterocyclical Chromophore Architectures

*4 Patent Family

Issued July 27, 2016

Designated Countries:  Austria, Belgium, Germany, Spain, France, United Kingdom, Italy, Netherlands


Issued Canadian Patents

CAN 2584792 Heterocyclical Chromophore Architectures

*4 Patent Family

Issued May 24, 2016


Issued Australian Patents

AU 2005302506 – Heterocyclical Chromophore Architectures

Granted November 29, 2012


Allowed Japanese Patents

JP 539187/2007 – Heterocyclical Chromophore Architectures
Notice of Grant March 19, 2013


Pending Patents

PCT/US06/11637 Heterocyclical Chromophore Architectures with Novel Electronic Acceptor Systems


PCT/US05/39010 Heterocyclical Chromophore Architectures


PCT/US05/39213 Heterocyclical Anti-Aromatic Chromophore Architectures


PCT/US05/39664 Anti-Aromatic Chromophore Architectures


PCT/US05/39212 Tricyclic Spacer Systems for Nonlinear Optical Devices


61/265012 Stable Free Radical Chromophores, processes for preparing the same.


Totally Integrated Material Engineering System

This patent covers material integration structures under a design strategy known as Totally Integrated Material Engineering. These integration structures provide for the “wrapping” of the core molecule in sterically hindering groups that maximally protect the molecule from environmental threats and maximally protect it from microscopic aggregation (which is a major cause of performance degradation and optical loss) within a minimal molecular volume. These structures also provide for the integration of polymerizable groups for integration of materials into a highly stable cross-linked material matrix.


Heterocyclical Steric Hindering System

This patent describes a nitrogenous heterocyclical structure for the integration of steric hindering groups that are necessary for the nanoscale material integration. Due to the [pi]-orbital configuration of the nitrogen bridge, this structure has been demonstrated not to interfere with the conductive nature of the electronic conductive pathway and thus is non-disruptive to the nonlinear optic character of the core molecular construction. The quantum mechanical design of the system is designed to establish complete molecular planarity (flatness) for optimal performance.


Heterocyclical Anti-Aromatic Systems

Two provisional patents cover heterocyclical anti-aromatic electronic conductive pathways that are the heart of the high-performance, high-stability molecular designs. The completely heterocyclical nature of the molecular designs “lock” conductive atomic orbitals into a planar (flat) configuration, which provides improved electronic conduction and a significantly lower reaction to environmental threats (e.g. thermal, chemical, photochemical, etc.) than the BLA design paradigm employed by other competitive nonlinear optic polymers.

The anti-aromatic nature of these structures dramatically improves the “zwitterionic-aromatic push-pull” of the systems, providing for low energy charge transfer. Low energy charge transfer is important for the production of extremely high nonlinear optic character.