Inventor · disambiguated record
David S. Trandal
Also filed as: TRANDAL DAVID · TRANDAL DAVID S · TRANDAL DAVID SCOTT
136 granted patents·6 pending applications·4,240 citations·filing 1997–2017
99Inventor score
Files withCALLWAVE COMMUNICATIONS LLC44CALLWAVE INC22TRANDAL DAVID S17KIRCHHOFF LELAND W12INVOCA INC9
Top patents by PatentIndex Score
142 records- 0199US8219558B1Methods and systems for inventory managementTRANDAL DAVID SCOTT·Filed 2011·Granted Jul 10, 2012·209 cites·19 claims
- 0299US7822188B1Methods and apparatus for providing expanded telecommunications serviceCALLWAVE INC·Filed 2006·Granted Oct 26, 2010·163 cites·57 claims
- 0399US7792709B1Methods and systems for receipt management and price comparisonTRANDAL DAVID S·Filed 2008·Granted Sep 7, 2010·198 cites·19 claims
- 0498US8694501B1Methods and systems for inventory managementTRANDAL DAVID SCOTT·Filed 2013·Granted Apr 8, 2014·78 cites·20 claims
- 0598US8442844B1Methods and systems for claims management facilitationTRANDAL DAVID S·Filed 2011·Granted May 14, 2013·88 cites·21 claims
- 0698US8401163B1Methods and systems for call processing and for providing call progress status over a networkKIRCHHOFF LELAND·Filed 2006·Granted Mar 19, 2013·246 cites·67 claims
- 0798US8229861B1Methods and systems for online warranty managementTRANDAL DAVID S·Filed 2009·Granted Jul 24, 2012·106 cites·21 claims
- 0898US7839987B1Methods and systems for creating a dynamic call log and contact recordsCALLWAVE INC·Filed 2006·Granted Nov 23, 2010·106 cites·159 claims
- 0998US7555110B2Methods and apparatus for providing expanded telecommunications serviceCALLWAVE INC·Filed 2005·Granted Jun 30, 2009·194 cites·60 claims
- 1098US7103167B2Systems and methods for call screeningCALLWAVE INC·Filed 2003·Granted Sep 5, 2006·149 cites·34 claims
- 1198US6968174B1Call routing apparatusCALLWAVE INC·Filed 2002·Granted Nov 22, 2005·204 cites·35 claims
- 1298US6738461B2Methods and apparatus for returning a call over a telephony systemCALLWAVE INC·Filed 2001·Granted May 18, 2004·141 cites·19 claims
- 1397US9171341B1Methods and systems for providing property dataTRANDAL DAVID SCOTT·Filed 2014·Granted Oct 27, 2015·46 cites·27 claims
- 1497US9171322B2Methods and systems for routing calls in a marketing campaignINVOCA INC·Filed 2015·Granted Oct 27, 2015·44 cites·29 claims
- 1597US8781105B1Methods and systems for processing and managing communicationsINVOCA INC·Filed 2014·Granted Jul 15, 2014·56 cites·28 claims
- 1697US8285604B1Methods and systems for receipt management and price comparisonTRANDAL DAVID S·Filed 2010·Granted Oct 9, 2012·44 cites·20 claims
- 1797US7962485B1Methods and systems for inventory managementTRANDAL DAVID S·Filed 2011·Granted Jun 14, 2011·42 cites·20 claims
- 1897US7474432B1Methods and systems for fax routingCALLWAVE INC·Filed 2007·Granted Jan 6, 2009·53 cites·60 claims
- 1997US6879677B2Methods and systems for telephony call completionCALLWAVE INC·Filed 2001·Granted Apr 12, 2005·179 cites·75 claims
- 2096US9277043B1Methods and systems for managing telecommunications and for translating voice messages to text messagesCALLWAVE COMMUNICATIONS LLC·Filed 2015·Granted Mar 1, 2016·26 cites·20 claims
- 2196US8548447B1Methods and systems for blocking unwanted telecommunicationsKIRCHHOFF LELAND W·Filed 2007·Granted Oct 1, 2013·33 cites·16 claims
- 2296US8423548B1Methods and systems for inventory managementTRANDAL DAVID SCOTT·Filed 2012·Granted Apr 16, 2013·31 cites·20 claims
- 2396US8369311B1Methods and systems for providing telephony services to fixed and mobile telephonic devicesCALLWAVE COMMUNICATIONS LLC·Filed 2006·Granted Feb 5, 2013·68 cites·103 claims
- 2496US8218736B1Methods and systems for confirming message deliveryMCCLINTOCK DAVID C·Filed 2007·Granted Jul 10, 2012·58 cites·26 claims
- 2596US8102986B1Methods and systems for providing telecommunications servicesMCCLINTOCK DAVID C·Filed 2007·Granted Jan 24, 2012·62 cites·25 claims
- 2696US7899823B1Methods and systems for inventory managementTRANDAL DAVID S·Filed 2008·Granted Mar 1, 2011·54 cites·17 claims
- 2795US9647978B2Methods and apparatus for providing expanded telecommunications serviceCALLWAVE COMMUNICATIONS LLC·Filed 2016·Granted May 9, 2017·14 cites·43 claims
- 2895US9319523B2Methods and apparatus for providing expanded telecommunications serviceCALLWAVE COMMUNICATIONS LLC·Filed 2014·Granted Apr 19, 2016·18 cites·22 claims
- 2995US8917860B2Methods and systems for processing and managing communicationsINVOCA INC·Filed 2014·Granted Dec 23, 2014·33 cites·21 claims
- 3095US8755511B2Methods and systems for processing and managing telephonic communicationsINVOCA INC·Filed 2013·Granted Jun 17, 2014·38 cites·33 claims
- 3195US8214338B1Methods and systems for media storageKIRCHHOFF LELAND W·Filed 2008·Granted Jul 3, 2012·49 cites·30 claims
- 3295US8000455B1Methods and systems for call processingCALLWAVE INC·Filed 2006·Granted Aug 16, 2011·52 cites·68 claims
- 3395US7636428B2Systems and methods for call screeningCALLWAVE INC·Filed 2006·Granted Dec 22, 2009·28 cites·77 claims
- 3494US9036808B2Methods and systems for data transfer and campaign managementINVOCA INC·Filed 2014·Granted May 19, 2015·24 cites·21 claims
- 3594US8861694B1Methods and systems for creating a dynamic call log and contact recordsCALLWAVE COMMUNICATIONS LLC·Filed 2013·Granted Oct 14, 2014·15 cites·26 claims
- 3694US8855107B1Methods and systems for call routing via a telephone numberKIRCHHOFF LELAND W·Filed 2012·Granted Oct 7, 2014·21 cites·20 claims
- 3794US8774785B1Methods and systems for blocking unwanted communicationsCALLWAVE COMMUNICATIONS LLC·Filed 2013·Granted Jul 8, 2014·17 cites·16 claims
- 3894US8577016B1Methods and systems for processing and managing telephonic communications using ring poolsRINGREVENUE INC·Filed 2013·Granted Nov 5, 2013·64 cites·20 claims
- 3994US8472604B2Systems and methods for call screeningBRAHM DAVID·Filed 2011·Granted Jun 25, 2013·23 cites·34 claims
- 4094US8468064B1Methods and systems for receipt management and price comparisonTRANDAL DAVID S·Filed 2012·Granted Jun 18, 2013·19 cites·20 claims
- 4194US8447285B1Methods and systems for managing telecommunications and for translating voice messages to text messagesBLADON ANTHONY·Filed 2008·Granted May 21, 2013·99 cites·27 claims
- 4294US8165572B1Methods and systems for call processing in a wireline and wireless networkKIRCHHOFF LELAND·Filed 2007·Granted Apr 24, 2012·26 cites·19 claims
- 4394US8064588B2Systems and methods for call screeningBRAHM DAVID·Filed 2009·Granted Nov 22, 2011·25 cites·12 claims
- 4494US7869076B1Facsimile telecommunications system and methodJ2 GLOBAL COMMUNICATIONS INC·Filed 2009·Granted Jan 11, 2011·17 cites·19 claims
- 4593US9838542B1Methods and systems for managing communicationsCALLWAVE COMMUNICATIONS LLC·Filed 2016·Granted Dec 5, 2017·10 cites·23 claims
- 4693US9413885B1Methods and systems for blocking unwanted communicationsCALLWAVE COMMUNICATIONS LLC·Filed 2015·Granted Aug 9, 2016·10 cites·14 claims
- 4793US9292861B2Methods and systems for routing callsINVOCA INC·Filed 2015·Granted Mar 22, 2016·15 cites·25 claims
- 4893US8325901B1Methods and apparatus for providing expanded telecommunications serviceDOLAN ROBERT A·Filed 2009·Granted Dec 4, 2012·29 cites·27 claims
- 4993US8296259B1Methods and systems for inventory managementTRANDAL DAVID SCOTT·Filed 2012·Granted Oct 23, 2012·13 cites·21 claims
- 5093US7852749B2Methods and systems for routing telecommunicationsCALLWAVE INC·Filed 2005·Granted Dec 14, 2010·91 cites·9 claims
Showing the top 50 of 142 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →