# Government-Owned Inventions, Available for Licensing
**ACTION:**
Notice of availability of inventions for licensing.
**SUMMARY:**
The inventions listed below are assigned to the National Aeronautics and Space Administration, have been filed in the United States Patent and Trademark Office, and are available for licensing.
**DATES:**
September 27, 2002.
**FOR FURTHER INFORMATION CONTACT:**
Rob Padilla, Patent Counsel, Ames Research Center, Mail Code 202A-4, Moffett Field, CA 94035-1000; telephone (650) 604-5104, fax (650) 604-2767.
*NASA Case No. ARC-14612-1:* Wire Insulation Defect Detector;
*NASA Case No. ARC-14586-1:* A Hybrid Neural Network And Support Vector Machine Method For Optimization;
*NASA Case No. ARC-14613-1:* Controlled Patterning And Growth Of Single Wall And Multi-Wall Carbon Nanotubes;
*NASA Case No. ARC-14638-1:* Diffraction-Based Optical Switch;
*NASA Case No. ARC-14577-1:* Wide Operational Range Thermal Sensor;
*NASA Case No. ARC-14606-1:* Method And System For Active Noise Control Of Tiltrotor Aircraft;
*NASA Case No. ARC-14682-1:* Ultrafast Laser Beam Switching And Pulse Train Generation By Using Coupled Vertical-Cavity, SurfaceEmitting Lasers (VCSELs);
*NASA Case No. ARC-14733-1:* An Environmentally Compatible Method To Purify Carbon Nanotubes.
*NASA Case No. ARC-14941-1:* Carbon Nanotubes As A Prototype Interface For Retinal Cell Recording And Stimulation (Vision Chip);
*NASA Case No. ARC-14554-1:* Neighboring Optimal Aircraft Guidance In A General Wind Environment.
Dated: September 20, 2002.
Robert M. Stephens,
Deputy General Counsel.