H. M. Electronics, Inc.
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Mar 06, 2001 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 642 Total Citation Count
- Mar 27, 1987 Earliest Filing
- 17 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
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Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5784685 Wireless intercom communication system and method of using sameExpiredAug 16, 95Jul 21, 98[H04Q]
5512891 Drive-up station vehicle detection system and method of using sameExpiredMay 04, 94Apr 30, 96[G08G]
5484668 Universally adaptable battery charger connector and method of using sameExpiredJul 27, 92Jan 16, 96[H01M, H01R]
5321848 Drive-up station full duplex communication system and method of using sameExpiredSep 28, 92Jun 14, 94[H04B]
5305132 Optical wavelength communication system and method of using sameExpiredJun 10, 92Apr 19, 94[H04B]
5274318 Portable wireless communication unit and method of using sameExpiredJul 30, 92Dec 28, 93[H02J, A45F]
5235728 Fastening device for portable equipment and method of using sameExpiredJul 30, 92Aug 17, 93[A45F, A44B]
5220677 Method and apparatus for establishing communication paths with requesting customer stationsExpiredOct 19, 90Jun 15, 93[H04B]
5203017 Method and apparatus for establishing wireless communication with multiple customer stationsExpiredOct 19, 90Apr 13, 93[H04B]
5177427 Battery charging system and method for preventing false switching from fast charge to trickle chargeExpiredMar 22, 91Jan 05, 93[H02J]
4977610 Wireless communication apparatus and method of operating sameExpiredOct 23, 89Dec 11, 90[H04A]
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