Patent | Date |
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Concentrated solar photovoltaic module Grant 7,807,920 - Linke , et al. October 5, 2 | 2010-10-05 |
Concentrated Solar Photovoltaic Module App 20090107541 - Linke; Edward J. ;   et al. | 2009-04-30 |
Single line telephone communication system Grant 4,821,319 - Middleton , et al. April 11, 1 | 1989-04-11 |
Line access apparatus for in-band communication Grant 4,750,170 - Zeller, Jr. , et al. June 7, 1 | 1988-06-07 |
Control and routing system Grant 4,672,602 - Hargrave , et al. June 9, 1 | 1987-06-09 |
Information transport system employing telephone lines Grant 4,665,516 - Middleton , et al. May 12, 1 | 1987-05-12 |
System for providing remote services Grant 4,656,651 - Evans , et al. April 7, 1 | 1987-04-07 |
Information collecting and forwarding apparatus Grant 4,654,869 - Smith , et al. March 31, 1 | 1987-03-31 |
Test trunk access controller Grant 4,646,342 - Hargrave , et al. February 24, 1 | 1987-02-24 |
Key telephone system with distributed control Grant 4,638,124 - Hargrave , et al. January 20, 1 | 1987-01-20 |
Comprehensive automatic directory assistance apparatus and method thereof Grant 4,608,460 - Carter , et al. August 26, 1 | 1986-08-26 |
Information transport system Grant 4,602,362 - Hargrave , et al. July 22, 1 | 1986-07-22 |
Expansion apparatus for use in communication systems Grant 4,602,363 - Das , et al. July 22, 1 | 1986-07-22 |
Communication switching system Grant 4,601,029 - Hargrave , et al. July 15, 1 | 1986-07-15 |
Simultaneous voice and data communication and data base access in a switching system using a combined voice conference and data base processing module Grant 4,589,107 - Middleton , et al. May 13, 1 | 1986-05-13 |
Use of a tone bus to provide polling and data distribution apparatus for communication system terminal groups Grant 4,584,680 - Carter , et al. April 22, 1 | 1986-04-22 |
Simultaneous voice and data communication and data base access in a switching system using a tone bus or broadcast mode Grant 4,578,789 - Middleton , et al. March 25, 1 | 1986-03-25 |
Telephone line access device for main distribution frame Grant 4,575,840 - Hargrave , et al. March 11, 1 | 1986-03-11 |
Multiparty line adapter with privacy feature controlled by reversal of line polarity at a central power source Grant 4,528,424 - Middleton , et al. July 9, 1 | 1985-07-09 |
Combining and splitting of voice and data from multiple terminal sources and electronic PABX for same Grant 4,488,287 - Carter , et al. December 11, 1 | 1984-12-11 |