Individual holder
CHAPMAN JOHN T
US·13 granted patents·22 citations·filing 2007–2012
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
13 records- 0188US9130769B2Upstream external PHY interface for data and control plane trafficCHAPMAN JOHN T·Filed 2012·Granted Sep 8, 2015·5 cites·24 claims
- 0283US9246701B2Downstream device architecture and controlCHAPMAN JOHN T·Filed 2012·Granted Jan 26, 2016·3 cites·23 claims
- 0379US8160093B2Timing system for modular cable modem termination systemCHAPMAN JOHN T·Filed 2009·Granted Apr 17, 2012·5 cites·22 claims
- 0477US8774217B2Time domain duplex between CMTS and cable modemsCHAPMAN JOHN T·Filed 2011·Granted Jul 8, 2014·3 cites·21 claims
- 0572US9313095B2Modular headend architecture with downstream multicastCHAPMAN JOHN T·Filed 2012·Granted Apr 12, 2016·1 cites·21 claims
- 0671US9247310B2DOCSIS out-of-band control signal frequency conversion for legacy set-top boxesCHAPMAN JOHN T·Filed 2012·Granted Jan 26, 2016·2 cites·28 claims
- 0766US8489958B2DOCSIS MAC-PHY downstream convergence layerCHAPMAN JOHN T·Filed 2010·Granted Jul 16, 2013·1 cites·22 claims
- 0865US8627392B1Proxy addressing scheme for cable networksCHAPMAN JOHN T·Filed 2007·Granted Jan 7, 2014·2 cites·18 claims
- 0955US8553704B2Wideband upstream protocolCHAPMAN JOHN T·Filed 2009·Granted Oct 8, 2013·0 cites·23 claims
- 1054US9246700B2Generic control protocolCHAPMAN JOHN T·Filed 2012·Granted Jan 26, 2016·0 cites·26 claims
- 1151US9014282B2Precision timing in a data over cable service interface specification (DOCSIS) systemCHAPMAN JOHN T·Filed 2012·Granted Apr 21, 2015·0 cites·32 claims
- 1248US8457156B2Wideband cable systemCHAPMAN JOHN T·Filed 2010·Granted Jun 4, 2013·0 cites·20 claims
- 1343US8576842B2Transmission of multi-channel MPEGCHAPMAN JOHN T·Filed 2011·Granted Nov 5, 2013·0 cites·25 claims
Join the waitlist — get patent alerts
Get an alert when CHAPMAN JOHN T files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →