William C. Shepard — 9 Patents at IBM

William C. Shepard has been granted 9 US patents while listed as an inventor at IBM. The first was granted in 1995 and the most recent in October 2025. William C. Shepard ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list William C. Shepard in Hyde Park, NY, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12436850	Data consistent freeze of peer-to-peer remote copy in a multiple computing cluster environment	Tabor R. Powelson, Tri M. Hoang, Dale F. Riedy	2025-10-07
10642706	Detection and recovery of lost host enabled facilities	Scott B. Compton, Dale F. Riedy	2020-05-05	$3,712,000
8782014	Data integrity mechanism for external storage devices	Harry M. Yudenfriend	2014-07-15	$5,287,000
6055602	Logical positioning within a storage device by a storage controller	James Elkins McIlvain	2000-04-25	$26,364,000
5870537	Concurrent switch to shadowed device for storage controller and device errors	Robert Frederic Kern, Michael Aloysius Paulsen, Harry M. Yudenfriend	1999-02-09	$13,231,000
5765200	Logical positioning within a storage device by a storage controller	James Elkins McIlvain	1998-06-09	$6,285,000
5416921	Apparatus and accompanying method for use in a sysplex environment for performing escalated isolation of a sysplex component in the event of a failure	Jeffrey A. Frey, Lisa M. Goetze, Allan S. Meritt, Jeffrey M. Nick, David H. Surman +1 more	1995-05-16	$12,933,000
5394554	Interdicting I/O and messaging operations from sending central processing complex to other central processing complexes and to I/O device in multi-system complex	David A. Elko, John F. Isenberg, Jr., Allan S. Meritt, Brian B. Moore, Jeffrey M. Nick +2 more	1995-02-28	$10,414,000
5388254	Method and means for limiting duration of input/output (I/O) requests	John F. Betz, Allan S. Meritt, Larry R. Perry, Harry M. Yudenfriend	1995-02-07	$10,783,000

William C. Shepard — 9 Patents

Issued Patents All Time

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