# 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 15, 2003.
**FOR FURTHER INFORMATION CONTACT:**
Linda Blackburn, Patent Counsel, Langley Research Center, Mail Code 212, Hampton, VA 23681-2199; telephone (757) 864-9260; ax (757) 864-9190.
*NASA Case No. LAR-15361-3-CU:* Gas Sensor Detector Balancing;
*NASA Case No. LAR-15712-2-CU:* Optical Path Switching Based Differential Absorption Radiometry For Substance Detection;
*NASA Case No. LAR-15818-3:* Optical Path Switching Based Differential Absorption Radiometry For Substance Detection;
*NASA Case No. LAR-16327-1:* Method For Anticipating Problems With Electrical Wiring;
*NASA Case No. LAR-16430-1-NP:* Polymides From 2,3,3',4'-Biphenyltetracarboxylic Dianhydride And Aromatic Diamines;
*NASA Case No. LAR-16576-1:* Marking Electrical Wiring With Condition Indicators.
Dated: September 18, 2003.
Robert M. Stephens,
Deputy General Counsel.