Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RD

Ramachandra Divakaruni — 251 Patents

IBM: 237 patents #122 of 70,183Top 1%
Infineon Technologies Ag: 18 patents #789 of 7,486Top 15%
Globalfoundries: 13 patents #279 of 4,424Top 7%
Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
SSStmicroelectronics Sa: 2 patents #601 of 1,676Top 40%
ETElpis Technologies: 1 patents #31 of 121Top 30%
Ossining, NY: #5 of 613 inventorsTop 1%
New York: #90 of 115,490 inventorsTop 1%
Overall (All Time): #1,970 of 4,157,543Top 1%
251 Patents All Time

Issued Patents All Time

Showing 176–200 of 251 patents

Patent #TitleCo-InventorsDate
6777737 Vertical DRAM punchthrough stop self-aligned to storage trench Jack A. Mandelman, Dureseti Chidambarrao 2004-08-17
6767781 Structure and method of forming bitline contacts for a vertical DRAM array using a line bitline contact mask Larry Nesbit, Jonathan E. Faltermeier, Wolfgang Bergner 2004-07-27
6759291 Self-aligned near surface strap for high density trench DRAMS Jochen Beintner, Jack A. Mandelman, Ulrike Gruening, Johann Alsmeier, Gary B. Bronner 2004-07-06
6759702 Memory cell with vertical transistor and trench capacitor with reduced burried strap Carl Radens, Jack A. Mandelman 2004-07-06
6750097 Method of fabricating a patterened SOI embedded DRAM/eDRAM having a vertical device cell and device formed thereby Jack A. Mandelman 2004-06-15
6727540 Structure and method of fabricating embedded DRAM having a vertical device array and a bordered bitline contact Babar A. Khan, Carl Radens 2004-04-27
6727539 Embedded vertical DRAM arrays with silicided bitline and polysilicon interconnect Ulrike Gruening, Jack A. Mandelman, Larry Nesbit, Carl Radens 2004-04-27
6727141 DRAM having offset vertical transistors and method Gary B. Bronner, Byeong Y. Kim, Jack A. Mandelman 2004-04-27
6724031 Method for preventing strap-to-strap punch through in vertical DRAMs Hiroyuki Akatsu, Dureseti Chidambarrao, Jack A. Mandelman, Carl Radens 2004-04-20
6703274 Buried strap with limited outdiffusion and vertical transistor DRAM Dureseti Chidambarrao, Jack A. Mandelman, Raymond Van Roijen 2004-03-09
6693041 Self-aligned STI for narrow trenches Jack A. Mandelman, Carl Radens 2004-02-17
6686668 Structure and method of forming bitline contacts for a vertical DRAM array using a line bitline contact mask Larry Nesbit, Johnathan E. Faltermeier, Wolfgang Bergner 2004-02-03
6686617 Semiconductor chip having both compact memory and high performance logic Paul D. Agnello, Bomy Chen, Scott W. Crowder, Subramanian S. Iyer, Dennis Sinitsky 2004-02-03
6670667 Asymmetric gates for high density DRAM Wayne F. Ellis, Jack A. Mandelman, Mary E. Weybright 2003-12-30
6660581 Method of forming single bitline contact using line shape masks for vertical transistors in DRAM/e-DRAM devices Haining Yang 2003-12-09
6656817 Method of filling isolation trenches in a substrate Laertis Economikos, Byeong Y. Kim 2003-12-02
6642566 Asymmetric inside spacer for vertical transistor Jack A. Mandelman, Haining Yang 2003-11-04
6638815 Formation of self-aligned vertical connector Gary B. Bronner 2003-10-28
6630379 Method of manufacturing 6F2 trench capacitor DRAM cell having vertical MOSFET and 3F bitline pitch Jack A. Mandelman, Carl Radens, Ulrike Gruening 2003-10-07
6596592 Structures and methods of anti-fuse formation in SOI Claude L. Bertin, Russell J. Houghton, Jack A. Mandelman, William R. Tonti 2003-07-22
6590259 Semiconductor device of an embedded DRAM on SOI substrate James W. Adkisson, Jeffrey P. Gambino, Jack A. Mandelman 2003-07-08
6579759 Formation of self-aligned buried strap connector Michael P. Chudzik, Jochen Beintner, Rajarao Jammy 2003-06-17
6573561 Vertical MOSFET with asymmetrically graded channel doping Dureseti Chidambarrao, Jack A. Mandelman, Kevin McStay 2003-06-03
6573137 Single sided buried strap Jack A. Mandelman, Wolfgang Bergner, Gary B. Bronner, Ulrike Gruening, Stephan Kudelka +5 more 2003-06-03
6570208 6F2 Trench EDRAM cell with double-gated vertical MOSFET and self-aligned STI Jack A. Mandelman, Carl Radens, Gary B. Bronner 2003-05-27