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USPTO Patent Rankings Data through Dec 31, 2025
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Robert Earl Rottmayer — 33 Patents

RRRead Rite: 17 patents #6 of 255Top 3%
STSeagate Technology: 16 patents #349 of 4,701Top 8%
University of California: 1 patents #8,022 of 18,278Top 45%
Fremont, CA: #449 of 9,298 inventorsTop 5%
California: #15,252 of 386,348 inventorsTop 4%
Overall (All Time): #105,480 of 4,157,543Top 3%
33 Patents All Time
Robert Earl Rottmayer has been granted 33 US patents while listed as an inventor at Read Rite. The first was granted in 1995 and the most recent in March 2013. Robert Earl Rottmayer ranks #105,480 of 4,157,543 US inventors in our database (top 2.5%). Patent records list Robert Earl Rottmayer in Fremont, CA, US.

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8405932 HAMR recording head having a sloped wall pole Michael Allen Seigler, Sharat Batra, Hua Zhou, Thomas William Clinton, Jie Gong 2013-03-26 $17,075,000
8289650 HAMR recording head having a sloped wall pole Michael Allen Seigler, Sharat Batra, Hua Zhou, Thomas William Clinton, Jie Gong 2012-10-16 $4,778,000
7929249 Spring loaded head for reduced fly height and tracking control Michael Allen Seigler 2011-04-19 $12,526,000
7839497 Phase compensator for coupling an electromagnetic wave into an optical condenser Tim Rausch, Michael Allen Seigler, Edward Charles Gage, William Albert Challener, Chubing Peng 2010-11-23 $8,802,000
7518815 Heat assisted magnetic recording head with multilayer electromagnetic radiation emission structure Michael Allen Seigler 2009-04-14 $10,827,000
7447140 Ferroelectric probe storage apparatus Mark Ian Lutwyche, Earl Chrzaszcz Johns, Martin Gerard Forrester, Mark David Bedillion, Andreas Roelofs +4 more 2008-11-04 $18,797,000
7412143 Heat assisted magnetic recording with heat profile shaping Julius K. Hohlfeld, William Albert Challener, Chubing Peng, Edward Charles Gage 2008-08-12 $24,455,000
7099121 Perpendicular magnetic recording head having a reduced field under the return pole and minimal eddy current losses Gregory John Parker, Thomas M. Crawford, Petrus Antonius Van Der Heijden, Sharat Batra 2006-08-29 $14,928,000
7038882 Low moment-high moment write pole with non-magnetic layer for establishing a magnetic path discontinuity between layers of the write pole Billy W. Crue, Jr., Erik Svedberg, Dmitri Litvinov, Sakhrat Khizroev 2006-05-02 $14,809,000
6985339 Disc drive having electromagnetic biased shieldless CPP reader Michael Allen Seigler, Gregory John Parker, Sharat Batra, Jonathan Hannay, Petrus Antonius Van Der Heijden 2006-01-10 $9,636,000
6898053 Perpendicular recording head with trackwidth defined by plating thickness Sakhrat Khizroev, Dmitri Litvinov, Bill Crue, Nurul Amin 2005-05-24 $8,104,000
6807032 Magnetic read head wherein the shields are used as electrical leads and have a minimized anisotropic magneto-resistance effect Michael Allen Seigler, Isabel G. Trindade, Petrus Antonius Van Der Heijden, Michael Minor, Mark William Covington +2 more 2004-10-19 $15,698,000
6687085 Perpendicular write head with high magnetization pole material and method of fabricating the write head Michael Minor, Michael Allen Seigler, Andrew Robert Eckert, Mark William Covington 2004-02-03 $8,329,000
6665136 Recording heads using magnetic fields generated locally from high current densities in a thin film wire Thomas William Clinton, Michael Allen Seigler 2003-12-16 $11,322,000
6633464 Synthetic antiferromagnetic pinned layer with Fe/FeSi/Fe system Chih-Huang Lai, Zhupei Shi, Hua-Ching Tong, Charles W. Miller 2003-10-14
6621664 Perpendicular recording head having integrated read and write portions Isabel G. Trindade, Gregory John Parker, Sharat Batra 2003-09-16 $12,135,000
6594112 Magnetic recording head with a precision throatheight-defining structure Billy W. Crue, Jr. 2003-07-15 $9,971,000
6445553 Method and system for fabricating a high density magnetoresistive device Ronald A. Barr 2002-09-03 $548,000
6417999 Magnetoresistive head stabilized structure and method of fabrication thereof Kenneth E. Knapp, Ronald A. Barr, Chih-Huang Lai 2002-07-09 $419,000
6404601 Merged write head with magnetically isolated poletip Jian Zhu, Kyusik Sin, Ronald A. Barr 2002-06-11 $1,684,000
6392850 Magnetoresistive transducer having a common magnetic bias using assertive and complementary signals Hua-Ching Tong, Francis H. Liu, Minshen Tan, Jian Zhu, Samuel W. Yuan 2002-05-21 $7,977,000
6330137 Magnetoresistive read sensor including a carbon barrier layer and method for making same Kenneth E. Knapp, Francis W. Ryan 2001-12-11 $7,670,000
6219205 High density giant magnetoresistive transducer with recessed sensor Samuel W. Yuan 2001-04-17 $31,445,000
6201673 System for biasing a synthetic free layer in a magnetoresistance sensor Jain Zhu, Kenneth E. Knapp, Yiming Huai 2001-03-13 $29,725,000
5986978 Read/write head and method for magnetic reading and magneto-optical writing on a data storage medium Charles C. Cheng, Xizeng Shi, Lijun Tong, Hua-Ching Tong 1999-11-16 $1,664,000