Assignee
FREDERICK LARRY D
US·8 granted patents·164 citations·filing 2007–2012
Top patents by PatentIndex Score
8 records- 0195US8446277B2Proximity warning system with silent zonesFREDERICK LARRY D·Filed 2010·Granted May 21, 2013·23 cites·35 claims
- 0295US8232888B2Interactive magnetic marker field for safety systems and complex proximity warning systemFREDERICK LARRY D·Filed 2007·Granted Jul 31, 2012·54 cites·41 claims
- 0394US9081046B2Proximity detection system with concurrent RF and magnetic fieldsFREDERICK LARRY D·Filed 2012·Granted Jul 14, 2015·14 cites·15 claims
- 0493US8552882B2Proximity detection systems and method for internal traffic controlFREDERICK LARRY D·Filed 2012·Granted Oct 8, 2013·10 cites·20 claims
- 0592US8169335B2Electromagnetic field adjustment for proximity detectionFREDERICK LARRY D·Filed 2009·Granted May 1, 2012·25 cites·30 claims
- 0690US8847780B2Proximity detection system and method and collision avoidance system and method using proximity detectionFREDERICK LARRY D·Filed 2012·Granted Sep 30, 2014·15 cites·6 claims
- 0785US8710979B2Personal alarm device for headwear for proximity detectionFREDERICK LARRY D·Filed 2009·Granted Apr 29, 2014·23 cites·32 claims
- 0848US8590981B2Mineral seam detection for surface minerFREDERICK LARRY D·Filed 2011·Granted Nov 26, 2013·0 cites·33 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →