Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Steven E. Lambert — 8 Patents

WMWd Media: 4 patents #21 of 182Top 15%
IBM: 4 patents #21,783 of 70,183Top 35%
San Jose, CA: #7,707 of 32,062 inventorsTop 25%
California: #74,834 of 386,348 inventorsTop 20%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Steven E. Lambert has been granted 8 US patents while listed as an inventor at Wd Media. The first was granted in 1991 and the most recent in July 2015. Steven E. Lambert ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Steven E. Lambert in San Jose, CA, US.

Patents per Year

Patents granted per year, 1991 to 2015Bar chart with a peak of 2 patents in 1993.peak 21991: 1 patents19911992: 1 patents19921993: 2 patents19932011: 1 patents20112013: 1 patents20132014: 1 patents20142015: 1 patents2015

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9093122 Systems and methods for improving accuracy of test measurements involving aggressor tracks written to disks of hard disk drives Dragos I. Mircea, Andreas Moser, Harold H. Gee, Douglas Bartholomew 2015-07-28 $19,034,000
8817410 System and method for improving head positioning Andreas Moser, Harold H. Gee, Dragos I. Mircea 2014-08-26 $17,330,000
8619381 System and method for improving head positioning Andreas Moser, Harold H. Gee, Dragos I. Mircea 2013-12-31 $13,061,000
7924519 Eccentricity determination for a disk 2011-04-12 $38,072,000
5227212 Magnetic recording disk, magnetoresistive read head, inductive write head combination Richard H. Ahlert, James K. Howard, Ian L. Sanders 1993-07-13 $9,483,000
5206590 Magnetoresistive sensor based on the spin valve effect Bernard Dieny, Bruce Alvin Gurney, Daniele Mauri, Stuart Stephen Papworth Parkin, Virgil S. Speriosu +1 more 1993-04-27 $8,906,000
5149409 Process for fabricating thin film metal alloy magnetic recording disks to selectively variable coercivities Richard H. Ahlert, James K. Howard 1992-09-22 $13,073,000
5051288 Thin film magnetic recording disk comprising alternating layers of a CoNi or CoPt alloy and a non-magnetic spacer layer Richard H. Ahlert, James K. Howard, Ian L. Sanders 1991-09-24 $15,462,000