SK

Shashank Krishnamurthy

OE Otis Elevator: 21 patents #59 of 1,840Top 4%
Hamilton Sundstrand: 1 patents #1,184 of 2,079Top 60%
WARF: 1 patents #1,912 of 4,123Top 50%
RTX (Raytheon): 1 patents #8,248 of 15,912Top 55%
Overall (All Time): #160,057 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11866295 Active braking for immediate stops Prasanna Nagarajan, David Ginsberg, Daryl J. Marvin, Ronnie E. Thebeau 2024-01-09
11296623 Emergency braking for a drive system Prasanna Nagarajan, Konda Reddy Chevva 2022-04-05
10934130 Elevator control system Jose Miguel Pasini, David Ginsberg, Arthur Hsu 2021-03-02
10934131 Ropeless elevator control system Vladimir Blasko, Enrico Manes 2021-03-02
10919732 Embedded power module 2021-02-16
10787340 Sensor and drive motor learn run for elevator systems David Ginsberg, Lei Xing, Penghe Geng, Ankit Gupta, Yogesh Parmod Jadhav +2 more 2020-09-29
10773922 Drive and control for six-phase electrical machines with negligible common-mode voltage Dong JIANG, Daryl J. Marvin 2020-09-15
10745238 Power distribution for multicar, ropeless elevator system Daryl J. Marvin, Luis Arnedo 2020-08-18
10689226 Position determining system for multicar ropeless elevator system Peter DePaola, Richard N. Fargo, David Ginsberg, Dang V. Nguyen 2020-06-23
10680538 Emergency braking for a drive system Prasanna Nagarajan, Konda Reddy Chevva 2020-06-09
10647543 Multi-car elevator control David Ginsberg, Dang V. Nguyen 2020-05-12
10513414 System and method of maintaining performance of a system Yang Wang, HanJong Kim, Christopher S. Czerwinski, Edward Piedra, Draguna Vrabie +1 more 2019-12-24
10513413 PWM strategy for regenerative multilevel drive Ismail Agirman, Prasanna Nagarajan, HanJong Kim, Yang Wang 2019-12-24
10427908 Emergency mode operation of elevator system having linear propulsion system Daryl J. Marvin 2019-10-01
10407273 Elevator braking control system David Ginsberg, Xiaodong Luo, Dang V. Nguyen, Richard N. Fargo 2019-09-10
10381952 Universal power electronic cell for distributed generation Luis Arnedo, Vladimir Blasko 2019-08-13
10366935 Architecture of drive unit employing gallium nitride switches Xin Wu, William A. Veronesi, Kyle W. Rogers, Daryl J. Marvin 2019-07-30
10308480 Embedded power module 2019-06-04
10221038 Control strategies for multilevel line regenerative drive Ismail Agirman, Yang Wang 2019-03-05
10008917 Bus capacitor bank configuration for a multi-level regenerative drive Ismail Agirman, Steven M. Millett, Yang Wang 2018-06-26
9998031 PWM controlled neutral point clamped multilevel converter Luis Arnedo, Marinko Kovacic, Yang Wang 2018-06-12
9755546 PWM controlled neutral point clamped multilevel converter Luis Arnedo, Marinko Kovacic, Yang Wang 2017-09-05
9673713 Gate drive power supply for multilevel converter Marinko Kovacic 2017-06-06
9220184 Advanced cooling for power module switches Ram Ranjan, Matthew Robert Pearson 2015-12-22
7715950 Non-inverter based distributed energy resource for use in a dynamic distribution system Robert H. Lasseter 2010-05-11