HUGHES CHRISTENSEN COMPANY
Patent Owner
Stats
- 5 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Mar 28, 1995 most recent publication
Details
- 5 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 452 Total Citation Count
- Jan 31, 1992 Earliest Filing
- 4 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5402124 Encoder and decoder with improved quantizer using reserved quantizer level for small amplitude signalsNov 25, 92Mar 28, 95[H03M]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5281260 High-strength tungsten carbide material for use in earth-boring bitsExpiredFeb 28, 92Jan 25, 94[C22C]
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