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

Durga P. Ravipati — 13 Patents

RRRead Rite: 11 patents #14 of 255Top 6%
DEDigital Equipment: 1 patents #1,005 of 2,100Top 50%
W(Western Digital (Fremont): 1 patents #299 of 473Top 65%
Phoenix, AZ: #475 of 6,660 inventorsTop 8%
Arizona: #2,773 of 32,909 inventorsTop 9%
Overall (All Time): #362,438 of 4,157,543Top 9%
13 Patents All Time
Durga P. Ravipati has been granted 13 US patents while listed as an inventor at Read Rite. The first was granted in 1993 and the most recent in August 2004. Durga P. Ravipati ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Durga P. Ravipati in Phoenix, AZ, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6775902 Method of making a magnetic head with aligned pole tips Yiming Huai, Mark D. Thomas, Carlos Corona, William D. Jensen 2004-08-17 $9,302,000
6504676 Magnetic head with low stack height and self-aligned pole tips Hugh C. Hiner, Billy W. Crue, Jr., William D. Jensen, Lien-Chang Wang 2003-01-07 $1,245,000
6137662 Magnetoresistive sensor with pinned SAL Yiming Huai, Daniel A. Nepela, Marcos M. Lederman 2000-10-24 $3,851,000
6118629 Magnetic head with aligned pole tips and pole layers formed of high magnetic moment material Yiming Huai, Mark D. Thomas, Carlos Corona, William D. Jensen 2000-09-12 $8,515,000
6032353 Magnetic head with low stack height and self-aligned pole tips Hugh C. Hiner, Billy W. Crue, Jr., William D. Jensen, Lein-Chang Wang 2000-03-07 $1,584,000
5966800 Method of making a magnetic head with aligned pole tips and pole layers formed of high magnetic moment material Yiming Huai, Mark D. Thomas, Carlos Corona, William D. Jensen 1999-10-19 $1,344,000
5928715 Thin film magnetoresistive device having contiguous magnetoresistive, hard bias and lead layer junctions with each hard bias layer extending outwardly beyond outside edges of each respective lead layer Steven C. Rudy 1999-07-27 $5,803,000
5838521 Magnetoresistive transducer having laminated magnetic shields 1998-11-17 $12,745,000
5739990 Spin-valve GMR sensor with inbound exchange stabilization Samuel W. Yuan 1998-04-14 $3,405,000
5708358 Spin valve magnetoresistive transducers having permanent magnets 1998-01-13 $5,787,000
5438470 Magnetoresistive structure with contiguous junction hard bias design with low lead resistance Yong Shen, William C. Cain 1995-08-01 $9,318,000
5434826 Multilayer hard bias films for longitudinal biasing in magnetoresistive transducer Yong Shen 1995-07-18 $20,680,000
5232570 Nitrogen-containing materials for wear protection and friction reduction William Haines, Chongwon Byun, Earl Chrzaszcz Johns, Quock Ng, Robert M. Raymond +1 more 1993-08-03 $16,111,000