Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Kenneth E. Knapp — 24 Patents

RRRead Rite: 13 patents #9 of 255Top 4%
W(Western Digital (Fremont): 9 patents #80 of 473Top 20%
JCJames R. Glidewell Dental Ceramics: 1 patents #57 of 80Top 75%
Livermore, CA: #119 of 2,185 inventorsTop 6%
California: #23,266 of 386,348 inventorsTop 7%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Kenneth E. Knapp has been granted 24 US patents while listed as an inventor at Read Rite. The first was granted in 2000 and the most recent in October 2012. Kenneth E. Knapp ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Kenneth E. Knapp in Livermore, CA, US.

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8298329 Nano-crystalline dental ceramics Steven M. Maginnis, Wolfgang Friebauer, Robin A. Carden 2012-10-30
7134185 Method of making narrow track width magnetoresistive sensor Kyusik Sin 2006-11-14 $15,656,000
7111382 Methods for fabricating redeposition free thin film CPP read sensors Ronald A. Barr, Lien-Chang Wang, Benjamin P. Law, James Spallas 2006-09-26 $6,690,000
7023658 Submicron track-width pole-tips for electromagnetic transducers Ronald A. Barr, Zhupei Shi, Billy W. Crue, Jr. 2006-04-04 $6,350,000
6994550 Vapor deposited titanium and titanium-nitride layers for dental devices Michael Hedrick 2006-02-07
6833979 Structure and method for redeposition free thin film CPP read sensor fabrication Ronald A. Barr, Lien-Chang Wang, Benjamin P. Law, James Spallas 2004-12-21 $7,207,000
6816345 Magnetoresistive sensors having submicron track widths and method of making Ronald A. Barr, Myron R. Cagan, Mark D. Thomas 2004-11-09 $6,546,000
6762910 Data storage and retrieval apparatus with thin film read head having inset extra gap insulation layer and method of fabrication Zi-Wen Dong, Ronald A. Barr, Russel Stearns, Bill Crue 2004-07-13 $21,701,000
6735850 Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication Matthew R. Gibbons, Ronald A. Barr, Benjamin P. Law, James Spallas, Ming Zhao 2004-05-18 $7,734,000
6700759 Narrow track width magnetoresistive sensor and method of making Kyusik Sin 2004-03-02 $11,131,000
6687977 CPP magnetoresistive device and method for making same Ronald A. Barr 2004-02-10 $3,111,000
6532823 Insulator layers for magnetoresistive transducers Liubo Hong, Robert E. Rotmayer 2003-03-18 $469,000
6487056 Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication Matthew R. Gibbons, Ronald A. Barr, Benjamin P. Law, James Spallas, Ming Zhao 2002-11-26 $1,673,000
6469877 Spin valve device with improved exchange layer defined track width and method of fabrication Ronald A. Barr 2002-10-22 $1,220,000
6433970 Structure and method for redeposition free thin film CPP read sensor fabrication Ronald A. Barr, Lien-Chang Wang, Benjamin P. Law, James Spallas 2002-08-13 $354,000
6421212 Thin film read head structure with improved bias magnet-to-magnetoresistive element interface and method of fabrication Matthew R. Gibbons, Ronald A. Barr, Benjamin P. Law, James Spallas, Ming Zhao 2002-07-16 $802,000
6417999 Magnetoresistive head stabilized structure and method of fabrication thereof Ronald A. Barr, Chih-Huang Lai, Robert Earl Rottmayer 2002-07-09 $419,000
6333830 Low resistance coil structure for high speed writer Chuck Rose, Zhupei Shi 2001-12-25
6330137 Magnetoresistive read sensor including a carbon barrier layer and method for making same Robert Earl Rottmayer, Francis W. Ryan 2001-12-11 $7,670,000
6233125 CPP magnetoresistive device and method for making same Ronald A. Barr 2001-05-15 $7,680,000
6204999 Method and system for providing a write head having a conforming pole structure Billy W. Crue, Jr., Zhupei Shi, Mark D. Thomas 2001-03-20 $14,643,000
6201673 System for biasing a synthetic free layer in a magnetoresistance sensor Robert Earl Rottmayer, Jain Zhu, Yiming Huai 2001-03-13 $29,725,000
6198608 MR sensor with blunt contiguous junction and slow-milling-rate read gap Liubo Hong 2001-03-06 $17,309,000
6118638 CPP magnetoresistive device and method for making same Ronald A. Barr 2000-09-12 $8,515,000