Mark A. Lehrer — 4 Patents at IBM

Mark A. Lehrer has been granted 4 US patents while listed as an inventor at IBM. The first was granted in 2003 and the most recent in February 2025. Mark A. Lehrer ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Mark A. Lehrer in Poughkeepsie, NY, US.

Patents per Year

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12235775	Using a transient cache list and prolonged cache list to manage tracks in cache based on a demotion hint with a track access request	Beth A. Peterson, Lokesh M. Gupta, Kyler A. Anderson, Christopher D. Filachek	2025-02-25
11132306	Stale message removal in a multi-path lock facility	Beth A. Peterson, Christopher D. Filachek	2021-09-28	$6,479,000
8301609	Collision detection and data corruption protection during an on-line database reorganization	Robert O. Dryfoos, Christopher D. Filachek, Steven Edwin Roach, Michael J. Shershin	2012-10-30
6658513	Managing locks affected by planned or unplanned reconfiguration of locking facilities	Mark A. Boonie, George Edward Graffius, III, Peter Lemieszewski, Susan A. Pavlakis, Steven Edwin Roach +3 more	2003-12-02	$4,756,000