Inventor · disambiguated record
John Fletcher
Also filed as: FLETCHER JOHN · FLETCHER JOHN E · FLETCHER JOHN EDWARD
33 granted patents·9 pending applications·149 citations·filing 1988–2025
96Inventor score
Files withNCHAIN LICENSING AG30NCHAIN HOLDINGS LTD3AMBI RAD LTD2CAMBRIDGE CRYPTOGRAPHIC LTD2MITCHELL INT INC1
Top patents by PatentIndex Score
42 records- 0196US11979507B2Computer implemented method and system for transferring access to a digital assetNCHAIN LICENSING AG·Filed 2023·Granted May 7, 2024·4 cites·9 claims
- 0295US11429956B2Computer-implemented systems and methods for authorising blockchain transactions with low-entropy passwordsNCHAIN HOLDINGS LTD·Filed 2018·Granted Aug 30, 2022·16 cites·20 claims
- 0394US12273438B2Rapid distributed consensus on blockchainNCHAIN LICENSING AG·Filed 2023·Granted Apr 8, 2025·2 cites·13 claims
- 0493US11159313B2Methods and systems for blockchain-implemented event-lock encryptionNCHAIN HOLDINGS LTD·Filed 2018·Granted Oct 26, 2021·13 cites·15 claims
- 0592US11870894B2Controlled cryptographic private key releaseNCHAIN LICENSING AG·Filed 2022·Granted Jan 9, 2024·2 cites·7 claims
- 0692US11348095B2Rapid distributed consensus on blockchainNCHAIN LICENSING AG·Filed 2018·Granted May 31, 2022·7 cites·15 claims
- 0791US12003616B2Rapid distributed consensus on blockchainNCHAIN LICENSING AG·Filed 2022·Granted Jun 4, 2024·1 cites·14 claims
- 0891US11329807B2Controlled cryptographic private key releaseNCHAIN LICENSING AG·Filed 2018·Granted May 10, 2022·7 cites·14 claims
- 0988US11538023B2Secure transfer between blockchainsNCHAIN LICENSING AG·Filed 2018·Granted Dec 27, 2022·3 cites·14 claims
- 1088US11403622B2Secure re-use of private key for dynamic group of nodesNCHAIN LICENSING AG·Filed 2018·Granted Aug 2, 2022·3 cites·15 claims
- 1186US11356263B2Computer-implemented system and method providing a decentralized protocol for the recovery of cryptographic assetsNCHAIN LICENSING AG·Filed 2018·Granted Jun 7, 2022·4 cites·24 claims
- 1284US11799637B2Methods and systems for blockchain-implemented event-lock encryptionNCHAIN LICENSING AG·Filed 2021·Granted Oct 24, 2023·1 cites·14 claims
- 1383US4869230ASpace heating applianceAMBI RAD LTD·Filed 1988·Granted Sep 26, 1989·43 cites·12 claims
- 1481US12284268B2Secure transfer between blockchainsNCHAIN LICENSING AG·Filed 2022·Granted Apr 22, 2025·0 cites·14 claims
- 1581US12243054B2Systems and methods for addressing security-related vulnerabilities arising in relation to off-blockchain channels in the event of failures in a networkNCHAIN LICENSING AG·Filed 2024·Granted Mar 4, 2025·0 cites·12 claims
- 1681US2025310124A1Computer-implemented method and system for transferring access to a digital assetNCHAIN LICENSING AG·Filed 2025·Application pending·0 cites
- 1780US2025021971A1Systems and methods for avoiding or reducing cryptographically stranded resources on a blockchain networkNCHAIN LICENSING AG·Filed 2024·Application pending·0 cites
- 1879US12341908B2Computer-implemented method and system for transferring access to a digital assetNCHAIN LICENSING AG·Filed 2024·Granted Jun 24, 2025·0 cites·16 claims
- 1979US12058233B2Secure re-use of private key for dynamic group of nodesNCHAIN LICENSING AG·Filed 2022·Granted Aug 6, 2024·0 cites·14 claims
- 2078US2025132903A1Methods and systems for blockchain-implemented event-lock encryptionNCHAIN LICENSING AG·Filed 2024·Application pending·0 cites
- 2177US12192338B2Methods and systems for blockchain-implemented event-lock encryptionNCHAIN LICENSING AG·Filed 2023·Granted Jan 7, 2025·0 cites·18 claims
- 2277US11983709B2Systems and methods for addressing security-related vulnerabilities arising in relation to off-blockchain channels in the event of failures in a networkNCHAIN LICENSING AG·Filed 2023·Granted May 14, 2024·0 cites·12 claims
- 2376US12470374B2Controlled cryptographic private key releaseNCHAIN LICENSING AG·Filed 2023·Granted Nov 11, 2025·0 cites·15 claims
- 2476US11616649B2Computer-implemented systems and methods relating to a binary blockchain comprising a pair of coupled blockchainsNCHAIN LICENSING AG·Filed 2018·Granted Mar 28, 2023·2 cites·17 claims
- 2574US12284287B2Computer-implemented system and method providing a decentralised protocol for the recovery of cryptographic assetsNCHAIN LICENSING AG·Filed 2023·Granted Apr 22, 2025·0 cites·18 claims
- 2673US12141798B2Systems and methods for avoiding or reducing cryptographically stranded resources on a blockchain networkNCHAIN LICENSING AG·Filed 2018·Granted Nov 12, 2024·1 cites·11 claims
- 2769US11818269B2Computer-implemented system and method providing a decentralised protocol for the recovery of cryptographic assetsNCHAIN LICENSING AG·Filed 2022·Granted Nov 14, 2023·0 cites·16 claims
- 2866US12341892B2Computer-implemented systems and methods relating to a binary blockchain comprising a pair of coupled blockchainsNCHAIN LICENSING AG·Filed 2023·Granted Jun 24, 2025·0 cites·15 claims
- 2966US2023131970A1Computer-implemented systems and methods for authorising blockchain transactions with low-entropy passwordsNCHAIN HOLDINGS LTD·Filed 2022·Application pending·0 cites
- 3062US5757636AMulti-phase inverters utilizing discontinuous PWM with dead bandsPWM DRIVES LIMITED·Filed 1994·Granted May 26, 1998·32 cites·10 claims
- 3160US11641283B2Computer implemented method and system for transferring access to a digital assetNCHAIN LICENSING AG·Filed 2019·Granted May 2, 2023·0 cites·14 claims
- 3259US11687922B2Systems and methods for addressing security-related vulnerabilities arising in relation to off-blockchain channels in the event of failures in a networkNCHAIN LICENSING AG·Filed 2018·Granted Jun 27, 2023·0 cites·10 claims
- 3356US2024411724A1Systems and methods for advanced duplicate image search and analysisSTATE FARM MUTUAL AUTOMOBILE INSURANCE CO·Filed 2024·Application pending·0 cites
- 3454US11979499B2Systems and methods for mining on a Proof-of-Work blockchain networkNCHAIN LICENSING AG·Filed 2020·Granted May 7, 2024·0 cites·19 claims
- 3552US12289408B2Smart contract execution using distributed coordinationNCHAIN LICENSING AG·Filed 2018·Granted Apr 29, 2025·0 cites·21 claims
- 3652US2023410102A1BlockchainCAMBRIDGE CRYPTOGRAPHIC LTD·Filed 2021·Application pending·0 cites
- 3746US2024305487A1Improved blockchain relying on advanced consensusUNCHARTED INDUSTRIES LTD·Filed 2022·Application pending·0 cites
- 3845US2023410101A1BlockchainCAMBRIDGE CRYPTOGRAPHIC LTD·Filed 2021·Application pending·0 cites
- 3942US9542660B2Work process collaboration managementMITCHELL INT INC·Filed 2013·Granted Jan 10, 2017·0 cites·10 claims
- 4042US2023021047A1Identity-based public-key generation protocolNCHAIN LICENSING AG·Filed 2020·Application pending·0 cites
- 4141US12301010B2Electrical generator synchronization system and methodNEWSOUTH INNOVATIONS PTY LTD·Filed 2020·Granted May 13, 2025·0 cites·22 claims
- 4240US4892084ASpace heating applianceAMBI RAD LTD·Filed 1988·Granted Jan 9, 1990·8 cites·10 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →