Inventor · disambiguated record
Roman A. Pletka
Also filed as: PLETKA ROMAN · PLETKA ROMAN A · PLETKA ROMAN ALEXANDER
175 granted patents·8 pending applications·1,070 citations·filing 2002–2023
99Inventor score
Top patents by PatentIndex Score
183 records- 0199US9251909B1Background threshold voltage shifting using base and delta threshold voltage shift values in flash memoryIBM·Filed 2014·Granted Feb 2, 2016·48 cites·20 claims
- 0298US10437670B1Metadata hardening and parity accumulation for log-structured arraysIBM·Filed 2018·Granted Oct 8, 2019·66 cites·20 claims
- 0398US10170195B1Threshold voltage shifting at a lower bit error rate by intelligently performing dummy configuration readsIBM·Filed 2017·Granted Jan 1, 2019·37 cites·20 claims
- 0498US10101931B1Mitigating read errors following programming in a multi-level non-volatile memoryIBM·Filed 2017·Granted Oct 16, 2018·50 cites·19 claims
- 0597US10013169B2Cooperative data deduplication in a solid state storage arrayIBM·Filed 2014·Granted Jul 3, 2018·57 cites·20 claims
- 0697US9575681B1Data deduplication with reduced hash computationsIBM·Filed 2016·Granted Feb 21, 2017·22 cites·13 claims
- 0797US9569306B1Recovery of multi-page failures in non-volatile memory systemIBM·Filed 2015·Granted Feb 14, 2017·23 cites·25 claims
- 0896US10884914B2Regrouping data during relocation to facilitate write amplification reductionIBM·Filed 2016·Granted Jan 5, 2021·35 cites·23 claims
- 0996US8250324B2Method to efficiently locate meta-data structures on a flash-based storage deviceHAAS ROBERT·Filed 2009·Granted Aug 21, 2012·63 cites·25 claims
- 1095US11656792B2Mirroring data in write caches of a controller of a non-volatile memoryIBM·Filed 2021·Granted May 23, 2023·4 cites·18 claims
- 1195US11176036B2Endurance enhancement scheme using memory re-evaluationIBM·Filed 2019·Granted Nov 16, 2021·10 cites·18 claims
- 1295US10963327B2Detecting error count deviations for non-volatile memory blocks for advanced non-volatile memory block managementIBM·Filed 2019·Granted Mar 30, 2021·10 cites·20 claims
- 1395US10936205B2Techniques for retention and read-disturb aware health binningIBM·Filed 2017·Granted Mar 2, 2021·14 cites·20 claims
- 1495US10699791B2Adaptive read voltage threshold calibration in non-volatile memoryIBM·Filed 2018·Granted Jun 30, 2020·17 cites·19 claims
- 1595US10453537B1Techniques for reducing read voltage threshold calibration in non-volatile memoryIBM·Filed 2018·Granted Oct 22, 2019·27 cites·20 claims
- 1695US9389792B1Reducing read-after-write errors in a non-volatile memory system using an old data copyIBM·Filed 2015·Granted Jul 12, 2016·14 cites·20 claims
- 1795US8688900B2Cache memory management in a flash cache architectureIBM·Filed 2013·Granted Apr 1, 2014·28 cites·9 claims
- 1894US11023150B2Block mode toggling using hybrid controllersIBM·Filed 2019·Granted Jun 1, 2021·11 cites·20 claims
- 1993US12222800B2Write and retire pages in QLC NAND blocksIBM·Filed 2023·Granted Feb 11, 2025·2 cites·20 claims
- 2093US12093171B2Proactive data placement in high density storage by a hybrid non-volatile storage controllerIBM·Filed 2023·Granted Sep 17, 2024·2 cites·19 claims
- 2193US11138124B2Migrating data between block pools in a storage systemIBM·Filed 2019·Granted Oct 5, 2021·10 cites·18 claims
- 2293US9690801B1Techniques for improving deduplication efficiency in a storage system with multiple storage nodesIBM·Filed 2016·Granted Jun 27, 2017·9 cites·11 claims
- 2393US9417809B1Efficient management of page retirement in non-volatile memory utilizing page retirement classesIBM·Filed 2015·Granted Aug 16, 2016·10 cites·20 claims
- 2493US8667219B2Optimizing locations of data accessed by client applications interacting with a storage systemELEFTHERIOU EVANGELOS S·Filed 2012·Granted Mar 4, 2014·19 cites·12 claims
- 2592US11264103B2Hybrid read voltage calibration in non-volatile random access memoryIBM·Filed 2019·Granted Mar 1, 2022·12 cites·20 claims
- 2692US10115472B1Reducing read disturb effect on partially programmed blocks of non-volatile memoryIBM·Filed 2017·Granted Oct 30, 2018·9 cites·19 claims
- 2792US9558107B2Extending useful life of a non-volatile memory by health gradingIBM·Filed 2013·Granted Jan 31, 2017·17 cites·13 claims
- 2892US9158706B2Selective space reclamation of data storage memory employing heat and relocation metricsBENHASE MICHAEL T·Filed 2011·Granted Oct 13, 2015·12 cites·25 claims
- 2991US11797199B2Balancing utilization of memory pools of physical blocks of differing storage densitiesIBM·Filed 2021·Granted Oct 24, 2023·2 cites·20 claims
- 3091US8688913B2Management of partial data segments in dual cache systemsBENHASE MICHAEL T·Filed 2011·Granted Apr 1, 2014·11 cites·12 claims
- 3190US10459839B1Accelerating garbage collection of flushed logical erase blocks in non-volatile memoryIBM·Filed 2018·Granted Oct 29, 2019·6 cites·20 claims
- 3290US9857986B2Wear leveling of a memory arrayIBM·Filed 2015·Granted Jan 2, 2018·7 cites·16 claims
- 3390US9583205B2Background threshold voltage shifting using base and delta threshold voltage shift values in non-volatile memoryIBM·Filed 2016·Granted Feb 28, 2017·7 cites·20 claims
- 3490US9563373B2Detecting error count deviations for non-volatile memory blocks for advanced non-volatile memory block managementIBM·Filed 2014·Granted Feb 7, 2017·9 cites·20 claims
- 3590US9244617B2Scheduling requests in a solid state memory deviceIBM·Filed 2015·Granted Jan 26, 2016·6 cites·17 claims
- 3690US8700949B2Reliability scheme using hybrid SSD/HDD replication with log structured managementELEFTHERIOU EVANGELOS S·Filed 2011·Granted Apr 15, 2014·11 cites·20 claims
- 3789US10957407B1Calculating corrective read voltage offsets in non-volatile random access memoryIBM·Filed 2019·Granted Mar 23, 2021·7 cites·25 claims
- 3889US10254981B2Adaptive health grading for a non-volatile memoryIBM·Filed 2016·Granted Apr 9, 2019·6 cites·21 claims
- 3989US9779021B2Non-volatile memory controller cache architecture with support for separation of data streamsIBM·Filed 2014·Granted Oct 3, 2017·8 cites·19 claims
- 4088US10552063B2Background mitigation reads in a non-volatile memory systemIBM·Filed 2018·Granted Feb 4, 2020·5 cites·20 claims
- 4188US10222997B2Background threshold voltage shifting using base and delta threshold voltage shift values in non-volatile memoryIBM·Filed 2017·Granted Mar 5, 2019·3 cites·20 claims
- 4288US9740609B1Garbage collection techniques for a data storage systemIBM·Filed 2016·Granted Aug 22, 2017·7 cites·20 claims
- 4388US8661196B2Optimizing locations of data accessed by client applications interacting with a storage systemELEFTHERIOU EVANGELOS S·Filed 2011·Granted Feb 25, 2014·10 cites·8 claims
- 4487US10929229B2Decentralized RAID scheme having distributed parity computation and recoveryIBM·Filed 2018·Granted Feb 23, 2021·5 cites·16 claims
- 4587US10082962B2Wear leveling of a memory arrayIBM·Filed 2017·Granted Sep 25, 2018·4 cites·16 claims
- 4687US9892128B2Techniques for improving deduplication efficiency in a storage system with multiple storage nodesIBM·Filed 2017·Granted Feb 13, 2018·4 cites·14 claims
- 4787US9864523B2Background threshold voltage shifting using base and delta threshold voltage shift values in non-volatile memoryIBM·Filed 2017·Granted Jan 9, 2018·5 cites·20 claims
- 4887US9274882B2Page retirement in a NAND flash memory systemIBM·Filed 2013·Granted Mar 1, 2016·8 cites·20 claims
- 4986US10942808B2Adaptive data and parity placement using compression ratios of storage devicesIBM·Filed 2018·Granted Mar 9, 2021·3 cites·25 claims
- 5086US9870285B2Selectively de-straddling data pages in non-volatile memoryIBM·Filed 2015·Granted Jan 16, 2018·4 cites·20 claims
Showing the top 50 of 183 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Roman A. Pletka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →