Inventor · disambiguated record
Eric J. Sprunk
Also filed as: SPRUNK ERIC · SPRUNK ERIC J
60 granted patents·19 pending applications·1,849 citations·filing 1993–2021
99Inventor score
Top patents by PatentIndex Score
79 records- 0198US6061449ASecure processor with external memory using block chaining and block re-orderingGEN INSTRUMENT CORP·Filed 1997·Granted May 9, 2000·515 cites·53 claims
- 0295US8321663B2Enhanced authorization process using digital signaturesMEDVINSKY ALEXANDER·Filed 2009·Granted Nov 27, 2012·43 cites·22 claims
- 0394US7404082B2System and method for providing authorized access to digital contentGEN INSTRUMENT CORP·Filed 2005·Granted Jul 22, 2008·23 cites·16 claims
- 0494US7243366B2Key management protocol and authentication system for secure internet protocol rights management architectureGEN INSTRUMENT CORP·Filed 2002·Granted Jul 10, 2007·115 cites·2 claims
- 0594US6898285B1System to deliver encrypted access control information to support interoperability between digital information processing/control equipmentGEN INSTRUMENT CORP·Filed 2000·Granted May 24, 2005·111 cites·28 claims
- 0693US8761401B2System and method for secure key distribution to manufactured productsSPRUNK ERIC J·Filed 2007·Granted Jun 24, 2014·50 cites·20 claims
- 0793US5404402AClock frequency modulation for secure microprocessorsGI CORP·Filed 1993·Granted Apr 4, 1995·135 cites·18 claims
- 0892US6839841B1Self-generation of certificates using secure microprocessor in a device for transferring digital informationGEN INSTRUMENT CORP·Filed 2000·Granted Jan 4, 2005·84 cites·3 claims
- 0990US9130928B2Online secure device provisioning frameworkQIU XIN·Filed 2011·Granted Sep 8, 2015·19 cites·28 claims
- 1090US7787622B2Efficient distribution of encrypted content for multiple content access systemsGEN INSTRUMENT CORP·Filed 2003·Granted Aug 31, 2010·43 cites·26 claims
- 1189US6810525B1Impulse pay per use method and system for data and multimedia servicesGEN INSTRUMENT CORP·Filed 2000·Granted Oct 26, 2004·77 cites·32 claims
- 1288US10958433B2Origin certificate based online certificate issuanceARRIS ENTPR LLC·Filed 2018·Granted Mar 23, 2021·5 cites·20 claims
- 1388US8356314B2Object and resource security systemGEN INSTRUMENT CORP·Filed 2005·Granted Jan 15, 2013·7 cites·7 claims
- 1487US8392702B2Token-based management system for PKI personalization processQIU XIN·Filed 2008·Granted Mar 5, 2013·18 cites·11 claims
- 1585US7877600B2Method and apparatus for distributing root certificationGEN INSTRUMENT CORP·Filed 2006·Granted Jan 25, 2011·13 cites·11 claims
- 1683US7660986B1Secure control of security modeGEN INSTRUMENT CORP·Filed 2000·Granted Feb 9, 2010·39 cites·19 claims
- 1782US11621842B2Origin certificate based online certificate issuanceARRIS ENTPR LLC·Filed 2021·Granted Apr 4, 2023·1 cites·19 claims
- 1881US5509076AApparatus for securing the integrity of a functioning systemGEN INSTRUMENT CORP·Filed 1994·Granted Apr 16, 1996·43 cites·17 claims
- 1980US9210138B2Efficient key generator for distribution of sensitive material from multiple application service providers to a secure element such as a universal integrated circuit card (UICC)Google Technology Holdings LLC·Filed 2013·Granted Dec 8, 2015·4 cites·13 claims
- 2080US7607022B1Configurable encryption/decryption for multiple services supportGEN INSTRUMENT CORP·Filed 2000·Granted Oct 20, 2009·17 cites·9 claims
- 2179US6959089B1Method and apparatus for secure transmission of dataGEN INSTRUMENT CORP·Filed 2000·Granted Oct 25, 2005·17 cites·40 claims
- 2276US8544077B2Internet protocol telephony security architectureSPRUNK ERIC J·Filed 2009·Granted Sep 24, 2013·6 cites·18 claims
- 2375US5754659AGeneration of cryptographic signatures using hash keysGEN INSTRUMENT CORP·Filed 1995·Granted May 19, 1998·86 cites·25 claims
- 2474US6961427B1Methods and apparatus for keystream generationGEN INSTRUMENT CORP·Filed 2000·Granted Nov 1, 2005·20 cites·46 claims
- 2574US6253223B1Robust random number generatorGEN INSTRUMENT CORP·Filed 1999·Granted Jun 26, 2001·79 cites·21 claims
- 2671US7450717B1Self authentication ciphertext chainingGEN INSTRUMENT CORP·Filed 2000·Granted Nov 11, 2008·16 cites·7 claims
- 2771US7305555B2Smart card mating protocolGEN INSTRUMENT CORP·Filed 2002·Granted Dec 4, 2007·11 cites·17 claims
- 2870US8687806B2Conditional access system employing constrained encryption keysVINCE LAWRENCE D·Filed 2008·Granted Apr 1, 2014·3 cites·21 claims
- 2969US10498540B2Efficient encrypted software distribution mechanismARRIS ENTPR LLC·Filed 2017·Granted Dec 3, 2019·1 cites·10 claims
- 3068US7929701B1Multiple level public key hierarchy for performance and high securityGEN INSTRUMENT CORP·Filed 2000·Granted Apr 19, 2011·13 cites·17 claims
- 3166US9485230B2Efficient key generator for distribution of sensitive material from multiple application service providers to a secure element such as a universal integrated circuit card (UICC)Google Technology Holdings LLC·Filed 2015·Granted Nov 1, 2016·1 cites·6 claims
- 3266US8479020B2Method and apparatus for providing an asymmetric encrypted cookie for product data storageSPRUNK ERIC·Filed 2007·Granted Jul 2, 2013·4 cites·17 claims
- 3366US7568223B2Internet protocol telephony security architectureGEN INSTRUMENT CORP·Filed 2004·Granted Jul 28, 2009·9 cites·15 claims
- 3465US8166292B2Configurable encryption/decryption for multiple services supportQIU XIN·Filed 2009·Granted Apr 24, 2012·1 cites·7 claims
- 3564US9912485B2Method and apparatus for embedding secret information in digital certificatesARRIS TECH INC·Filed 2015·Granted Mar 6, 2018·1 cites·11 claims
- 3663US11683170B2Implicit RSA certificatesARRIS ENTPR LLC·Filed 2020·Granted Jun 20, 2023·0 cites·20 claims
- 3763US8068610B2Method and system for providing security within multiple set-top boxes assigned for a single customerMORONEY PAUL·Filed 2002·Granted Nov 29, 2011·6 cites·11 claims
- 3861US7150035B2Path sealed software object conditional access controlGEN INSTRUMENT CORP·Filed 2001·Granted Dec 12, 2006·4 cites·26 claims
- 3961US7058609B2Pay by time system for content delivery to media playback systemsGEN INSTRUMENT CORP·Filed 2002·Granted Jun 6, 2006·6 cites·23 claims
- 4061US6804782B1Countermeasure to power attack and timing attack on cryptographic operationsGEN INSTRUMENT CORP·Filed 1999·Granted Oct 12, 2004·50 cites·22 claims
- 4161US6711684B1Variable security code download for an embedded processorGEN INSTRUMENT CORP·Filed 1999·Granted Mar 23, 2004·39 cites·29 claims
- 4260US8904424B2Object and resource security systemMOTOROLA MOBILITY LLC·Filed 2012·Granted Dec 2, 2014·0 cites·2 claims
- 4360US7764793B2Method to leverage a secure device to grant trust and identity to a second deviceGEN INSTRUMENT CORP·Filed 2005·Granted Jul 27, 2010·2 cites·15 claims
- 4459US11616994B2Embedding information in elliptic curve base pointARRIS ENTPR LLC·Filed 2021·Granted Mar 28, 2023·0 cites·8 claims
- 4559US9027159B2Handshake protocol to control actors and functions in a cable set-top-box system to propagate acceptance of an IP license to securely authenticate software application program interfaces (APIs)GEN INSTRUMENT CORP·Filed 2013·Granted May 5, 2015·0 cites·8 claims
- 4659US5606616ACryptographic apparatus with double feedforward hash functionGEN INSTRUMENT CORP·Filed 1995·Granted Feb 25, 1997·42 cites·20 claims
- 4758US9172981B2Challenge-response cable set-top-box system to securely authenticate software application program interfaces (APIs)ARRIS TECHNOLOGY INC·Filed 2013·Granted Oct 27, 2015·0 cites·16 claims
- 4857US11005656B2Embedding information in elliptic curve base pointARRIS ENTPR LLC·Filed 2018·Granted May 11, 2021·0 cites·16 claims
- 4954US7929483B2Method and apparatus for providing a secure system timeGEN INSTRUMENT CORP·Filed 2004·Granted Apr 19, 2011·3 cites·16 claims
- 5054US5822431AVirtual authentication network for secure processorsGEN INSTRUMENT CORP·Filed 1996·Granted Oct 13, 1998·28 cites·20 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →