Assignee
HEWLETT PACKARD LTD
GB·11 granted patents·415 citations·filing 1974–2002
Top patents by PatentIndex Score
11 records- 0191US6859527B1Communications arrangement and method using service system to facilitate the establishment of end-to-end communication over a networkHEWLETT PACKARD LTD·Filed 2000·Granted Feb 22, 2005·116 cites·15 claims
- 0288US4384354ANoise margin measurement and error probability predictionHEWLETT PACKARD LTD·Filed 1980·Granted May 17, 1983·93 cites·37 claims
- 0385US5081548AData storage apparatus and methodHEWLETT PACKARD LTD·Filed 1990·Granted Jan 14, 1992·42 cites·11 claims
- 0473US6873495B2Recording and/or reproducing device comprising a coated tape guideHEWLETT PACKARD LTD·Filed 2002·Granted Mar 29, 2005·10 cites·14 claims
- 0572US5905724AMessage modification apparatus for use in a telecommunication signalling networkHEWLETT PACKARD LTD·Filed 1997·Granted May 18, 1999·47 cites·17 claims
- 0669US3970926AMethod and apparatus for measuring the group delay characteristics of a transmission pathHEWLETT PACKARD LTD·Filed 1975·Granted Jul 20, 1976·26 cites·23 claims
- 0768US5029022AMethod of storing data on recording tapeHEWLETT PACKARD LTD·Filed 1989·Granted Jul 2, 1991·16 cites·8 claims
- 0863US4451886ABus extender circuitry for data transmissionHEWLETT PACKARD LTD·Filed 1983·Granted May 29, 1984·37 cites·12 claims
- 0948US3988678ACircuit arrangement for the measuring of group delay and attenuation distortionsHEWLETT PACKARD LTD·Filed 1975·Granted Oct 26, 1976·10 cites·15 claims
- 1044US4825449AAnalysis of digital radio transmissionsHEWLETT PACKARD LTD·Filed 1987·Granted Apr 25, 1989·16 cites·3 claims
- 1125US3965424AMethod and apparatus for tracking an incrementally sweeping generator by a frequency selective receiverHEWLETT PACKARD LTD·Filed 1974·Granted Jun 22, 1976·2 cites·7 claims
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