Inventor

Juchang Lee

Inventor

Seoul, KR

Overview

2007–2020

Patent span

Physics

Primary field (CPC G)

Patents· 82 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary

G06FElectric digital data processing93%

H04LTransmission of digital information, e.g. telegraphic communication5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

PatentTitleYear

10,877,956Transactional cache invalidation for inter-node caching2020 10,866,967Multi-replica asynchronous table replication2020 10,860,612Parallel replication across formats2020 10,860,553Multi-level storage architecture2020 10,853,351Logless atomic data movement2020 10,824,611Automatic determination of table distribution for multinode, distributed database systems2020 10,795,881Table replication in a database environment2020 10,761,946Transaction commit protocol with recoverable commit identifier2020 10,706,019Database processing after a lock condition2020 10,698,892Order-independent multi-record hash generation and data filtering2020 10,664,497Hybrid database table stored as both row and column store2020 10,664,465Database change capture with transaction-consistent order2020 10,592,528Workload capture and replay for replicated database systems2020 10,585,873Atomic processing of compound database transactions that modify a metadata entity2020 10,572,510Distributed database transaction protocol2020 10,552,413Database workload capture and replay2020 10,554,771Parallelized replay of captured database workload2020 10,545,995Validating query results during asynchronous database replication2020 10,534,676Measuring snapshot delay between source database system and its asynchronous replica2020 10,534,764Partial merge2020 10,452,636Delayed snapshot isolation for read service at a database2019 10,452,640Distributed transaction management using two-phase commit optimization2019 10,444,990Fast restart of applications using shared memory2019 10,402,285Hybrid database concurrent transaction control2019 10,360,146Group garbage collection for multi-version concurrency control in database systems2019 10,353,895Atomic visibility switch for transactional cache invalidation2019 10,346,383Hybrid database table stored as both row and column store2019 10,346,298Interval garbage collection for multi-version concurrency control in database systems2019 10,303,679Ensuring snapshot monotonicity in asynchronous data replication2019 10,298,702Parallelized replay of captured database workload2019 10,296,632Synchronization on reactivation of asynchronous table replication2019 10,275,508Query hints for caching and replication2019 10,275,401Write access control in a database2019 10,268,743Distributed database transaction protocol2019 10,235,440Decentralized transaction commit protocol2019 10,191,765Transaction commit operations with thread decoupling and grouping of I/O requests2019 10,185,737Distributed transaction management with tokens2019 10,185,632Data synchronization with minimal table lock duration in asynchronous table replication2019 10,169,439Multi-source asynchronous table replication2019 10,162,766Deleting records in a multi-level storage architecture without record locks2018 10,162,710Version space reconstruction during database initialization2018 10,127,260In-memory database system providing lockless read and write operations for OLAP and OLTP transactions2018 10,102,120Hybrid garbage collection for multi-version concurrency control in database systems2018 10,095,764Multi-replica asynchronous table replication2018 10,055,440Database table re-partitioning using trigger-based capture and replay2018 10,042,910Database table re-partitioning using two active partition specifications2018 9,965,513Set-orientated visibility state retrieval scheme2018 9,965,359Log forwarding to avoid deadlocks during parallel log replay in asynchronous table replication2018 9,965,360RowID-based data synchronization for asynchronous table replication2018 9,959,178Transactional and parallel log replay for asynchronous table replication2018 9,824,134'Database system with transaction control block index'2017 9,805,074'Compressed representation of a transaction token'2017 9,798,759'Delegation of database post-commit processing'2017 9,792,318'Supporting cursor snapshot semantics'2017 9,740,715'Deleting records in a multi-level storage architecture'2017 9,720,949'Client-side partition-aware batching of records for insert operations'2017 9,720,992'DML replication with logical log shipping'2017 9,635,093'Slave side transaction ID buffering for efficient distributed transaction management'2017 9,594,799'Logless atomic data movement'2017 9,558,258'Hybrid database table stored as both row and column store'2017 9,558,229'Transaction private log buffering for high performance of transaction processing'2017 9,501,502'Locking protocol for partitioned and distributed tables'2016 9,483,516'Multi-version concurrency control across row store and column store'2016 9,465,829'Partial merge'2016 9,465,843'Hybrid database table stored as both row and column store'2016 9,465,844'Unified table query processing'2016 9,336,284'Client-side statement routing in distributed database'2016 9,336,262'Accelerated transactions with precommit-time early lock release'2016 9,171,020'Deleting records in a multi-level storage architecture'2015 9,165,010'Logless atomic data movement'2015 9,098,522'Version garbage collection using snapshot lists'2015 9,063,969'Distributed transaction management using optimization of local transactions'2015 9,037,677'Update protocol for client-side routing information'2015 9,009,182'Distributed transaction management with tokens'2015 8,935,205'System and method of performing snapshot isolation in distributed databases'2015 8,918,436'Hybrid database table stored as both row and column store'2014 8,793,276'Client-side statement routing in distributed database'2014 8,782,100'Hybrid database table stored as both row and column store'2014 8,768,927'Hybrid database table stored as both row and column store'2014 8,700,660'Client-side statement routing for partitioned tables'2014 8,442,962'Distributed transaction management using two-phase commit optimization'2013 7,305,421'Parallelized redo-only logging and recovery for highly available main memory database systems'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007–2017Patents assigned to SAP AG (11)· patent assignee history

2007–2020Based in Seoul, KR· patent location history

2013–2019Patents assigned to LEE JUCHANG (38)· patent assignee history

2013–2019Patents assigned to MUEHLE MICHAEL (10)· patent assignee history

2014–2019Patents assigned to NOH JAEYUN (10)· patent assignee history

2014–2020Based in Seocho-gu, KR· patent location history

2015–2020Patents assigned to SAP SE (71)· patent assignee history

2015–2016Based in Anyang-si, KR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SAP SE	71	2015–2020
LEE JUCHANGself	38	2013–2019
SAP AG	11	2007–2017
MUEHLE MICHAEL	10	2013–2019
NOH JAEYUN	10	2014–2019

Locations

Location	Patents	Span
Seoul, KR	73	2007–2020
Seocho-gu, KR	7	2014–2020
Anyang-si, KR	2	2015–2016