Ranjan Gupta, 5522 Mcclintock Ct, Irvine, CA 92602

2013031, Nov 28, 2013

May 23, 2012

13/478310

Ranjan Kumar Gupta - Schenectady NY, US
Christof Martin Sihler - Hallbergmoos, DE
Satish Sivarama Gunturi - Albany NY, US
Stefan Schroeder - Munich, DE
Joseph Song Manguelle - Houston TX, US
Ravisekhar Nadimpalli Raju - Clifton Park NY, US
Rajib Datta - Niskayuna NY, US

GENERAL ELECTRIC COMPANY - SCHENECTADY NY

H02H 3/20
H02J 1/00

307 39, 307130

A load bypass switch enables continuous power to remote loads in the event of 1) failure of one or more remote loads, or 2) faults within the remote loads, within a dc power system. The bypass switch utilizes the passive components of the dc loads or inverters and therefore reduces overall component count. A black start method for the remote dc system uses the same passives present inside the loads/inverters and simultaneously uses some of the features of the bypass switch. A bypass-module-yard uses multiple bypass switches enabling continuous power to the remote loads in the event of failure of one or more power distribution cables (in-feed to the remote loads) located remotely in the dc system.

2013031, Nov 28, 2013

May 25, 2012

13/480919

Ranjan Kumar Gupta - Schenectady NY, US
Rajib Datta - Niskayuna NY, US
Di Zhang - Albany NY, US

GENERAL ELECTRIC COMPANY - SCHENECTADY NY

H02M 7/487
H02M 7/483
H02M 7/49

363 71

A high voltage, high power multi-level drive structure includes a plurality of neutral-point-piloted (NPP) converter cells stacked together. At least one clamping diode is connected to one or many NPP converter cell to provide a neutral-point-pilot-clamped (NPPC) converter structure. Flying capacitors connected to the NPPC converter structure yield a neutral-point-clamped-flying-capacitor converter cell structure.

2013034, Dec 26, 2013

Jun 25, 2012

13/531629

Ranjan Kumar Gupta - Schenectady NY, US
Ravisekhar Nadimpalli Raju - Clifton Park NY, US
Rajib Datta - Niskayuna NY, US
Mohammed Agamy - Niskayuna NY, US

GENERAL ELECTRIC COMPANY - SCHENECTADY NY

H02M 3/335

363 16

An electronics power system includes a plurality of substantially identical power electronic modules. Each power electronic module includes a single-phase DC/AC inverter having an output side. Each power electronic module further includes a medium/high-frequency-isolated DC/DC current-to-voltage converter having an input side. The medium/high-frequency-isolated DC/DC current-to-voltage converter drives the single-phase DC/AC inverter. Each DC/DC converter and its corresponding DC/AC inverter are connected back-to-back sharing a common DC-link. The plurality of power electronics modules is stacked together in series at the input side and in parallel or series/parallel at the output side.

2020027, Sep 3, 2020

May 11, 2020

16/871574

- Oakland CA, US
Ranjan Gupta - Irvine CA, US

C12N 15/113
A61K 31/165
A61K 31/35
A61K 31/365
A61K 31/506
A61K 31/65
A61K 38/17
C07K 16/18
A61K 31/713
A61K 31/18
A61K 31/192
A61K 31/609

Methods for treating nerve damage in a muscle, e.g., denervated muscle tissue (e.g., muscle damaged from traumatic injury), in a patient in need thereof featuring performing a pre-operative muscle biopsy on the denervated muscle tissue; making visible motor end plates (MEPs) in neuromuscular junctions (NMJs) in the biopsy; and performing a nerve transfer (e.g., partial radial nerve to axillary transfer) if (i) the MEPs shown in the biopsy persist and (ii) the MEPs shown in the biopsy retain their structures and exhibit certain morphometric properties. The nerve transfer helps regain neuromuscular function of the denervated muscle tissue. The biopsy may feature the use of two-photon microscopy. In certain embodiments, the method is performed at least 6 months after injury to the patient.

2020008, Mar 19, 2020

Sep 12, 2019

16/568440

- Oakland CA, US
Dmitry Protsenko - Vallejo CA, US
Tony Nguyen - Irvine CA, US
Ranjan Gupta - Irvine CA, US

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA - Oakland CA

A61N 1/20
A61N 1/36
A61N 1/04

A method of treating connective tissue by applying a DC current to the tissue in the absence of intentionally heating the tissue.

2015025, Sep 10, 2015

Mar 7, 2014

14/201062

- Schenectady NY, US
Ranjan Kumar Gupta - Schenectady NY, US
Einar Vaughn Larsen - Ballston Lake NY, US

H02M 5/458
H02J 3/36

A hybrid HVDC converter system includes a DC bus, at least one capacitor commutated converter (CCC) and at least one self-commutated converter (SCC) coupled in series through the DC bus. The CCC induces a first voltage on the DC buses, the SCC induces a second voltage on the DC bus, the first voltage and the second voltage are summed to define a total DC voltage. The method includes at least one of regulating the total DC voltage induced on the DC buses including regulating the first DC voltage through the CCC and regulating the second DC voltage through the SCC substantially simultaneously, regulating the total DC voltage induced on the DC bus including regulating the second DC voltage through the SCC, and regulating the total DC voltage induced on the DC bus including regulating the first DC voltage through the CCC.

2015007, Mar 12, 2015

Sep 11, 2013

14/024315

- Schenectady NY, US
Rixin Lai - Clifton Park NY, US
Song Chi - Clifton Park NY, US
Ranjan Kumar Gupta - Schenectady NY, US
Di Zhang - Niskayuna NY, US

General Electric Company - Schenectady NY

H02H 3/16

361 49

A high-voltage DC (HVDC) power system and a method of controlling and protecting the HVDC power system includes a plurality of sending-end (SE) modules coupled in electrical series and a plurality of receiving-end (RE) power converter modules electrically coupled to said plurality of SE modules, the RE modules coupled in a switchyard configuration, the switchyard configuration including a plurality of load branches coupled together in electrical series, each load branch including a branch bypass switch configured to bypass load current around an associated load branch, and a branch protection system.

2014034, Nov 27, 2014

Aug 7, 2014

14/453637

- Schenectady NY, US
Luis Jose Garces - Niskayuna NY, US
Ranjan Kumar Gupta - Edison NJ, US
Di Zhang - Niskayuna NY, US
Andrew Allen Rockhill - Mechanicville NY, US

H02M 5/458

363 35

A power converter module is provided. The power converter module includes a first converter leg and a second converter leg. The first converter leg includes a first switching unit and a second switching unit coupled in series. The second switching unit is disposed in a reverse orientation with respect to an orientation of the first switching unit. The second converter leg includes a third switching unit and a diode coupled in series. The third switching unit is disposed in a reverse orientation with respect to the orientation of the first switching unit. The power converter also includes a first energy storage device operatively coupled between the first converter leg and the second converter leg. The power converter module further includes a second energy storage device operatively coupled between the first converter leg and the second converter leg.