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USPTO Patent Rankings Data through Dec 31, 2025
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Randy L. Egan — 30 Patents

IBM: 30 patents #3,385 of 70,183Top 5%
Rochester, MN: #187 of 3,042 inventorsTop 7%
Minnesota: #1,972 of 52,454 inventorsTop 4%
Overall (All Time): #121,623 of 4,157,543Top 3%
30 Patents All Time
Randy L. Egan has been granted 30 US patents while listed as an inventor at IBM. The first was granted in 1997 and the most recent in August 2019. Randy L. Egan ranks #121,623 of 4,157,543 US inventors in our database (top 2.9%). Patent records list Randy L. Egan in Rochester, MN, US.

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10387411 Determining a density of a key value referenced in a database query over a range of rows Paul Reuben Day, Roger A. Mittelstadt 2019-08-20 $1,949,000
9218394 Reading rows from memory prior to reading rows from secondary storage Rafal P. Konik, Roger A. Mittelstadt, Mark W. Theuer 2015-12-22 $2,572,000
9129037 Disappearing index for more efficient processing of a database query Roger A. Mittelstadt, Brian R. Muras 2015-09-08 $6,618,000
8977601 Disappearing index for more efficient processing of a database query Roger A. Mittelstadt, Brian R. Muras 2015-03-10 $8,782,000
8745033 Database query optimization using index carryover to subset an index Paul Reuben Day, Roger A. Mittelstadt 2014-06-03 $4,638,000
8473484 Identifying impact of installing a database patch Rafal P. Konik, Roger A. Mittelstadt, Mark W. Theuer 2013-06-25 $6,528,000
8412700 Database query optimization using index carryover to subset an index Paul Reuben Day, Roger A. Mittelstadt 2013-04-02 $8,535,000
8396858 Adding entries to an index based on use of the index Roger A. Mittelstadt, Brian R. Muras 2013-03-12 $9,153,000
8396861 Determining a density of a key value referenced in a database query over a range of rows Paul Reuben Day, Roger A. Mittelstadt 2013-03-12 $9,153,000
8386445 Reorganizing database tables Rafal P. Konik, Roger A. Mittelstadt, Mark W. Theuer 2013-02-26 $4,239,000
8380703 Feedback loop between a query optimizer and a cache manager Rafal P. Konik, Roger A. Mittelstadt, Mark W. Theuer 2013-02-19 $3,959,000
8290936 Executing a query plan with display of intermediate results Paul Reuben Day, Roger A. Mittelstadt, Brian R. Muras 2012-10-16 $3,795,000
8275761 Determining a density of a key value referenced in a database query over a range of rows Paul Reuben Day, Roger A. Mittelstadt 2012-09-25 $5,997,000
8140520 Embedding densities in a data structure Paul Reuben Day, Roger A. Mittelstadt 2012-03-20 $2,170,000
8140517 Database query optimization using weight mapping to qualify an index Paul Reuben Day, Roger A. Mittelstadt, Dale M. Stahl 2012-03-20 $2,170,000
8015191 Implementing dynamic processor allocation based upon data density Paul Reuben Day, Roger A. Mittelstadt 2011-09-06 $5,472,000
7783661 Method and apparatus for optimizing queries in a logically partitioned computer system Paul Reuben Day, Robert Douglas Driesch, Jr., Jeffrey W. Tenner 2010-08-24 $3,306,000
7756856 Method and apparatus for optimizing queries in a logically partitioned computer system Paul Reuben Day, Robert Douglas Driesch, Jr., Jeffrey W. Tenner 2010-07-13 $6,420,000
7653826 Method and apparatus for query optimization and management of sleepy drives Paul Reuben Day, Roger A. Mittelstadt, Brian R. Muras 2010-01-26 $13,842,000
7346612 Method and apparatus for optimizing queries in a logically partitioned computer system Paul Reuben Day, Robert Douglas Driesch, Jr., Jeffrey W. Tenner 2008-03-18 $8,037,000
7020647 Utilize encoded vector indexing for database grouping Kevin James Kathmann 2006-03-28 $16,084,000
7007009 Representation for data used in query optimization Robert Joseph Bestgen, Curtis Boger, John D. Dietel 2006-02-28 $8,236,000
6996556 Metadata manager for database query optimizer Curtis Boger, John Francis Edwards, Michael S. Faunce 2006-02-07 $5,045,000
6931395 Method and apparatus for optimizing queries in a logically partitioned computer system Paul Reuben Day, Robert Douglas Driesch, Jr., Jeffrey W. Tenner 2005-08-16 $6,237,000
6405187 Utilizing encoded vector indexes for statistics in database processing Kevin James Kathmann, Gary R. Ricard, Thuan Quang Bui 2002-06-11 $11,523,000