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 226–250 of 251 patents

Patent #TitleCo-InventorsDate
6420749 Trench field shield in trench isolation Jeffrey P. Gambino, Edward W. Kiewra, Jack A. Mandelman, Carl Radens, William R. Tonti 2002-07-16
6414347 Vertical MOSFET Heon Lee, Jack A. Mandelman, Carl Radens, Jai-Hoon Sim 2002-07-02
6406962 Vertical trench-formed dual-gate FET device structure and method for creation Paul D. Agnello, Arne Ballantine, Erin C. Jones, Edward J. Nowak, Jed H. Rankin 2002-06-18
6403423 Modified gate processing for optimized definition of array and logic devices on same chip Mary E. Weybright, Gary B. Bronner, Richard A. Conti, Jeffrey P. Gambino, Peter D. Hoh +1 more 2002-06-11
6396121 Structures and methods of anti-fuse formation in SOI Claude L. Bertin, Russell J. Houghton, Jack A. Mandelman, William R. Tonti 2002-05-28
6376324 Collar process for reduced deep trench edge bias Jack A. Mandelman, Carl Radens, Ulrike Gruening, Akira Sudo 2002-04-23
6369419 Self-aligned near surface strap for high density trench DRAMS Jochen Beintner, Jack A. Mandelman, Ulrike Gruening, Johann Alsmeier, Gary B. Bronner 2002-04-09
6350653 Embedded DRAM on silicon-on-insulator substrate James W. Adkisson, Jeffrey P. Gambino, Jack A. Mandelman 2002-02-26
6348374 Process for 4F2 STC cell having vertical MOSFET and buried-bitline conductor structure Satish D. Athavale, Gary B. Bronner, Ulrike Gruening, Jack A. Mandelman, Carl Radens 2002-02-19
6346734 Modified gate conductor processing for poly length control in high density DRAMS Mary E. Weybright 2002-02-12
6339241 Structure and process for 6F2 trench capacitor DRAM cell with vertical MOSFET and 3F bitline pitch Jack A. Mandelman, Carl Radens, Ulrike Gruening 2002-01-15
6333220 Method and apparatus for providing low-GIDL dual workfunction gate doping with borderless diffusion contact Jack A. Mandelman 2001-12-25
6326260 Gate prespacers for high density, high performance DRAMs James W. Adkisson, Mary E. Weybright, Scott D. Halle, Jeffrey P. Gambino, Heon Lee 2001-12-04
6309924 Method of forming self-limiting polysilicon LOCOS for DRAM cell Jack A. Mandelman, Irene McStay, Larry Nesbit, Carl Radens, Helmut Tews 2001-10-30
6287913 Double polysilicon process for providing single chip high performance logic and compact embedded memory structure Paul D. Agnello, Bomy Chen, Scott W. Crowder, Subramanian S. Iyer, Dennis Sinitsky 2001-09-11
6284593 Method for shallow trench isolated, contacted well, vertical MOSFET DRAM Jack A. Mandelman, Carl Radens 2001-09-04
6281084 Disposable spacers for improved array gapfill in high density DRAMs Hiroyuki Akatsu, Gill Yong Lee 2001-08-28
6281064 Method for providing dual work function doping and protective insulating cap Jack A. Mandelman, Gary B. Bronner 2001-08-28
6274441 Method of forming bitline diffusion halo under gate conductor ledge Jack A. Mandelman, William R. Tonti 2001-08-14
6261914 Process for improving local uniformity of chemical mechanical polishing using a self-aligned polish rate enhancement layer Jeffrey P. Gambino, Carl Radens, Jeremy K. Stephens 2001-07-17
6261894 Method for forming dual workfunction high-performance support MOSFETs in EDRAM arrays Jack A. Mandelman, Carl Radens 2001-07-17
6258659 Embedded vertical DRAM cells and dual workfunction logic gates Ulrike Gruening, Jack A. Mandelman, Thomas Rupp 2001-07-10
6242310 Method of forming buried-strap with reduced outdiffusion including removing a sacrificial insulator leaving a gap and supporting spacer Jack A. Mandelman 2001-06-05
6214686 Spatially offset deep trenches for high density DRAMS Gary B. Bronner 2001-04-10
6150212 Shallow trench isolation method utilizing combination of spacer and fill Jeffrey P. Gambino, Jack A. Mandelman, Carl Radens, William R. Tonti 2000-11-21