Inventor · disambiguated record
Debashish Purkayastha
Also filed as: PURKAYASTHA DEBASHISH
49 granted patents·39 pending applications·560 citations·filing 2003–2025
98Inventor score
Files withINTERDIGITAL PATENT HOLDINGS INC37INTERDIGITAL TECH CORP20INTERDIGITAL PATENT HOLDINGS12PURKAYASTHA DEBASHISH5SHAHEEN KAMEL M3
Top patents by PatentIndex Score
88 records- 0196US11765126B2Methods, apparatus, and system for edge resolution functionINTERDIGITAL PATENT HOLDINGS INC·Filed 2020·Granted Sep 19, 2023·11 cites·15 claims
- 0296US9363829B2Random access in dynamic and shared spectrumsINTERDIGITAL PATENT HOLDINGS·Filed 2013·Granted Jun 7, 2016·20 cites·32 claims
- 0395US6940844B2Method and apparatus for reporting WLAN capabilities of a dual mode GPRS/WLAN or UMTS/WLAN WTRUINTERDIGITAL TECH CORP·Filed 2003·Granted Sep 6, 2005·86 cites·4 claims
- 0494US8891423B2Group-based machine to machine communicationSHAHEEN KAMEL M·Filed 2010·Granted Nov 18, 2014·26 cites·32 claims
- 0594US6987985B2Wireless communication components and methods for multiple system communicationsINTERDIGITAL TECH CORP·Filed 2003·Granted Jan 17, 2006·154 cites·12 claims
- 0693US9894686B2Random access in dynamic and shared spectrumsINTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Feb 13, 2018·7 cites·20 claims
- 0793US9419776B2Method and apparatus for operating supplementary cells in licensed exempt spectrumGAUVREAU JEAN-LOUIS·Filed 2012·Granted Aug 16, 2016·15 cites·14 claims
- 0892US7272240B2Method and apparatus for generating, sensing, and adjusting watermarksINTERDIGITAL TECH CORP·Filed 2005·Granted Sep 18, 2007·28 cites·33 claims
- 0991US12336026B2Multi rat D2D, extending D2D to include 3GPP and other non-3GPP rat / devicesINTERDIGITAL PATENT HOLDINGS INC·Filed 2021·Granted Jun 17, 2025·2 cites·20 claims
- 1091US8201216B2Techniques for database structure and managementCHA INHYOK·Filed 2007·Granted Jun 12, 2012·27 cites·20 claims
- 1191US8190191B2Mobility middleware architecture for multiple radio access technology apparatusLIVET CATHERINE M·Filed 2006·Granted May 29, 2012·30 cites·35 claims
- 1289US11533594B2Enhanced NEF function, MEC and 5G integrationSONY CORP·Filed 2018·Granted Dec 20, 2022·6 cites·18 claims
- 1389US10070431B2LTE operation in small cells using dynamic shared spectrumINTERDIGITAL PATENT HOLDINGS INC·Filed 2017·Granted Sep 4, 2018·4 cites·20 claims
- 1489US8102823B2Method and apparatus for reporting WLAN capabilities of dual mode GPRS/WLAN or UMTS/WLAN WTRUPURKAYASTHA DEBASHISH·Filed 2005·Granted Jan 24, 2012·14 cites·14 claims
- 1587US8638769B2Method and apparatus for reporting WLAN capabilities of a dual mode GPRS/WLAN or UMTS/WLAN WTRUPURKAYASTHA DEBASHISH·Filed 2011·Granted Jan 28, 2014·6 cites·20 claims
- 1686US7574220B2Method and apparatus for alerting a target that it is subject to sensing and restricting access to sensed content associated with the targetINTERDIGITAL TECH CORP·Filed 2005·Granted Aug 11, 2009·10 cites·26 claims
- 1785US10849161B2Random access in dynamic and shared spectrumsINTERDIGITAL PATENT HOLDINGS INC·Filed 2019·Granted Nov 24, 2020·2 cites·20 claims
- 1885US9882684B2Method and apparatus for operating supplementary cells in licensed exempt spectrumINTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Jan 30, 2018·3 cites·26 claims
- 1984US7204746B2Wireless communication components and methods for multiple system communicationsINTERDIGITAL TECH CORP·Filed 2005·Granted Apr 17, 2007·12 cites·16 claims
- 2081US12477424B2Extended 5G local area network interworking with a home network and change of access network for 5G LAN connected devicesINTERDIGITAL PATENT HOLDINGS INC·Filed 2021·Granted Nov 18, 2025·1 cites·20 claims
- 2181US8331315B2Media independent handover for smart phone architecturePURKAYASTHA DEBASHISH·Filed 2008·Granted Dec 11, 2012·12 cites·18 claims
- 2281US7532723B2Tokens/keys for wireless communicationsINTERDIGITAL TECH CORP·Filed 2004·Granted May 12, 2009·29 cites·6 claims
- 2379US9706545B2LTE operation in small cells using dynamic shared spectrumINTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Jul 11, 2017·2 cites·21 claims
- 2479US9294929B2LTE operation in small cells using dynamic shared spectrumINTERDIGITAL PATENT HOLDINGS·Filed 2013·Granted Mar 22, 2016·3 cites·21 claims
- 2579US8149790B2Bi-directional handover method and apparatusPURKAYASTHA DEBASHISH·Filed 2008·Granted Apr 3, 2012·8 cites·21 claims
- 2678US12095848B2Transparent relocation of MEC application instances between 5G devices and MEC hostsINTERDIGITAL PATENT HOLDINGS INC·Filed 2020·Granted Sep 17, 2024·1 cites·20 claims
- 2778US10390367B2Random access in dynamic and shared spectrumsINTERDIGITAL PATENT HOLDINGS INC·Filed 2019·Granted Aug 20, 2019·1 cites·16 claims
- 2877US12231392B2Methods, apparatus, and system for edge resolution functionINTERDIGITAL PATENT HOLDINGS INC·Filed 2024·Granted Feb 18, 2025·0 cites·20 claims
- 2977US9578568B2Method and apparatus for inter-device transfer (handoff) between IMS and generic IP clientsINTERDIGITAL PATENT HOLDINGS INC·Filed 2016·Granted Feb 21, 2017·2 cites·12 claims
- 3076US10201013B2Random access in dynamic and shared spectrumsINTERDIGITAL PATENT HOLDINGS INC·Filed 2017·Granted Feb 5, 2019·1 cites·18 claims
- 3176US9008065B2Methods and apparatuses for providing services to a dual mode GPRS/WLAN or UMTS/WLAN WTRUINTERDIGITAL TECH CORP·Filed 2013·Granted Apr 14, 2015·2 cites·27 claims
- 3276US2025280456A1Multi rat d2d, extending d2d to include 3gpp and other non-3gpp rat / devicesINTERDIGITAL PATENT HOLDINGS INC·Filed 2025·Application pending·0 cites
- 3375US9332415B2Method and apparatus for delivery of data-based/voice services over piconets and wireless LANs (WLANs) coupled to 3GPP devices including protocol architecture and information elements relating to short message service (SMS) over WLANsINTERDIGITAL TECH CORP·Filed 2013·Granted May 3, 2016·2 cites·19 claims
- 3475US8619757B2Method and apparatus for delivery of data-based/voice services over piconets and wireless LANs (WLANs) coupled to 3GPP devices including protocol architecture and information elements relating to short message services (SMS) over WLANsSHAHEEN KAMEL M·Filed 2004·Granted Dec 31, 2013·16 cites·33 claims
- 3573US8134978B2Integration of 802.21 media independent handover functionality to radio interface layer and telephony serverPURKAYASTHA DEBASHISH·Filed 2008·Granted Mar 13, 2012·5 cites·16 claims
- 3670US8014367B2System for application server autonomous access across different types of access technology networksINTERDIGITAL TECH CORP·Filed 2004·Granted Sep 6, 2011·12 cites·18 claims
- 3769US2023396582A1Methods, apparatus, and system for edge resolution functionINTERDIGITAL PATENT HOLDINGS INC·Filed 2023·Application pending·0 cites
- 3859US10153870B2Method and apparatus for operating supplementary cells in licensed exempt spectrumINTERDIGITAL PATENT HOLDINGS INC·Filed 2018·Granted Dec 11, 2018·0 cites·19 claims
- 3957US10003933B2Method and apparatus for synchronizing mobile station media flows during a collaborative sessionINTERDIGITAL PATENT HOLDINGS INC·Filed 2017·Granted Jun 19, 2018·0 cites·20 claims
- 4055US9848022B2Method and apparatus for inter-device transfer (handoff) between IMS and generic IP clientsINTERDIGITAL PATENT HOLDINGS INC·Filed 2017·Granted Dec 19, 2017·0 cites·18 claims
- 4155US2025168638A1Personal internet of things network connectivityINTERDIGITAL PATENT HOLDINGS INC·Filed 2023·Application pending·0 cites
- 4255US2015023244A1Group-based machine to machine communicationINTERDIGITAL PATENT HOLDINGS·Filed 2014·Application pending·0 cites
- 4354US2025142334A1Customer premises network access controlINTERDIGITAL PATENT HOLDINGS INC·Filed 2022·Application pending·0 cites
- 4452US12445382B2Application mobility based on enhanced MPTCPINTERDIGITAL PATENT HOLDINGS INC·Filed 2019·Granted Oct 14, 2025·0 cites·6 claims
- 4552US2016205150A1METHOD AND APPARATUS FOR DELIVERY OF DATA-BASED/VOICE SERVICES OVER PICONETS AND WIRELESS LANs (WLANs) COUPLED TO 3GPP DEVICES INCLUDING PROTOCOL ARCHITECTURE AND INFORMATION ELEMENTS RELATING TO SHORT MESSAGE SERVICE (SMS) OVER WLANsINTERDIGITAL TECH CORP·Filed 2016·Application pending·0 cites
- 4652US2025310134A1Data collection with customizable blockchain processingINTERDIGITAL PATENT HOLDINGS INC·Filed 2023·Application pending·0 cites
- 4752US2007249390A1Wireless communication components and methods for multiple system communicationsINTERDIGITAL TECH CORP·Filed 2007·Application pending·0 cites
- 4851US9544127B2Method and apparatus for synchronizing mobile station media flows during a collaborative sessionINTERDIGITAL PATENT HOLDINGS INC·Filed 2015·Granted Jan 10, 2017·0 cites·12 claims
- 4951US2024314534A1Discovery of internet of things networkINTERDIGITAL PATENT HOLDINGS INC·Filed 2022·Application pending·0 cites
- 5051US2024196184A1Discovery and interoperation of constrained devices with mec platform deployed in mnos edge computing infrastructureINTERDIGITAL PATENT HOLDINGS INC·Filed 2022·Application pending·0 cites
Showing the top 50 of 88 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →