Optical sources having a strongly scattering gain medium providing laser-like action Grant US-5943354-A United States of America 24 Aug 1999
Optically-based methods and apparatus for sorting garments and other textiles Grant US-5881886-A United States of America 16 Mar 1999
Optical sources having a strongly scattering gain medium providing laser-like action Grant US-5825790-A United States of America 20 Oct 1998
Optical sources having a strongly scattering gain medium providing laser-like action Grant US-5625456-A United States of America 29 Apr 1997