Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DJ

Douglas W. Johnson — 67 Patents

IMImation: 37 patents #1 of 622Top 1%
IBM: 12 patents #9,258 of 70,183Top 15%
FJFort James: 11 patents #20 of 241Top 9%
BIBenchmark Storage Innovations: 1 patents #4 of 17Top 25%
LGLandmark Graphics: 1 patents #262 of 543Top 50%
Illinois Tool Works: 1 patents #3,441 of 4,311Top 80%
Austin, TX: #271 of 18,064 inventorsTop 2%
Texas: #1,040 of 125,132 inventorsTop 1%
Overall (All Time): #31,718 of 4,157,543Top 1%
67 Patents All Time
Douglas W. Johnson has been granted 67 US patents while listed as an inventor at Imation. The first was granted in 1986 and the most recent in November 2018. Douglas W. Johnson ranks #31,718 of 4,157,543 US inventors in our database (top 0.76%). Patent records list Douglas W. Johnson in Austin, TX, US.

Issued Patents All Time

Showing 1–25 of 67 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10133831 Method and system of predicting future hydrocarbon production Gustavo Carvajal, Alvin Stanley Cullick, Hatem Nasr 2018-11-20
8947802 Methods and systems for magnetic media servo writing Roni J. Dornfeld, Stephen J. Rothermel 2015-02-03 $829,000
8867157 Perpendicular pole head for servo writing magnetic media Larold L. Olson, Yung Yip, Stephen J. Rothermel 2014-10-21 $379,000
8867167 Tapered pole heads for magnetic media Stephen J. Rothermel 2014-10-21 $379,000
8817415 Erasure of magnetic storage media having perpendicular anisotropy Larold L. Olson, Michael P. Sharrock 2014-08-26 $1,280,000
8804276 Continuous biasing and servowriting of magnetic storage media having perpendicular anisotropy Larold L. Olson, Michael P. Sharrock 2014-08-12 $1,181,000
8797674 Servo mark length matched to write head gap for magnetic storage media Larold L. Olson, Michael P. Sharrock 2014-08-05 $590,000
8767342 Erasure and servowriting of magnetic storage media having perpendicular anistropy Larold L. Olson, Michael P. Sharrock 2014-07-01 $1,416,000
8760802 Systems and methods for processing magnetic media with first and second magnetic gaps adjacent opposite sides of the recording layer Stephen J. Rothermel 2014-06-24 $1,262,000
8643968 Methods and systems for magnetic media servo writing Roni J. Dornfeld, Stephen J. Rothermel 2014-02-04 $654,000
7889454 Distributed servo patterns for data storage media James S. Anderson, David A. Gobran, Denis J. Langlois 2011-02-15 $3,605,000
7878745 U-nut fastener and collated strip thereof Anthony A. Allen, Don Hinson, John M. Kosidlo, Troy D. Carman 2011-02-01 $16,553,000
7835108 Data storage tape recertification Yung Yip 2010-11-16 $2,874,000
7595950 Robust data storage techniques for two-sided data storage tape Larold L. Olson, Brian D. Findlay, C. Thomas Jennings, Denis J. Langlois, Richard W. Molstad 2009-09-29 $4,937,000
7495859 Interleaved servo pattern Mark P. Weber, Richard E. Jewett, Richard W. Molstad, Alan R. Olson 2009-02-24 $3,479,000
7466510 Distributed servo patterns for data storage media James S. Anderson, David A. Gobran, Denis J. Langlois 2008-12-16 $6,400,000
7436622 Concurrent servo and data track writing Denis J. Langlois 2008-10-14 $7,046,000
7379254 Mixed frequency amplitude-based servo pattern Denis J. Langlois 2008-05-27 $10,332,000
7342748 System with matrix array of write heads and matrix array of magnetoresistive (MR) read heads Yung Yip, James S. Anderson, Denis J. Langlois, Richard W. Molstad 2008-03-11 $4,407,000
7204446 Data storage tape guiding systems using tapered guides James S. Anderson, Richard W. Molstad, Robert W. Tapani 2007-04-17 $3,570,000
7204445 Guide arrangements for data storage tape guiding systems Allan R. Markert, Wayne P. Schaefer, Robert W. Tapani 2007-04-17 $3,570,000
7173794 Accessing both sides of data storage tape Richard W. Molstad, Robert W. Tapani 2007-02-06 $9,427,000
7139151 Band identification in time-based servopositioning formats Yung Yip 2006-11-21 $10,314,000
7095583 Dual mode servo pattern Denis J. Langlois, Richard W. Molstad, Yung Yip 2006-08-22 $7,956,000
7079343 Time-based sectored servo data format Richard W. Molstad, Durkee B. Richards 2006-07-18 $8,231,000