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Variable transformers or inductances not covered by group H01F21/00
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H01F29/00
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Parent Industries
H
ELECTRICITY
H01
Electric elements
H01F
MAGNETS INDUCTANCES TRANSFORMERS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
Current Industry
H01F29/00
Variable transformers or inductances not covered by group H01F21/00
Sub Industries
H01F29/02
with tappings on coil or winding with provision for rearrangement or interconnection of windings
H01F29/025
Constructional details of transformers or reactors with tapping on coil or windings
H01F29/04
having provision for tap-changing without interrupting the load current
H01F29/06
with current collector gliding or rolling on or along winding
H01F29/08
with core, coil, winding, or shield movable to offset variation of voltage or phase shift
H01F29/10
having movable part of magnetic circuit
H01F29/12
having movable coil, winding, or part thereof having movable shield
H01F29/14
with variable magnetic bias
H01F29/146
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Patents Grants
last 30 patents
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Patent Grant
110 kV three-phase dry-type transformer and assembly method therefor
Patent number
12,340,938
Issue date
Jun 24, 2025
Jiangsu Huapeng Transformer Co., Ltd.
Tianping Wang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multi-layer-multi-turn structure for high efficiency wireless commu...
Patent number
12,316,128
Issue date
May 27, 2025
NuCurrent, Inc.
Vinit Singh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Inductive component and method for adjusting an inductance
Patent number
12,315,671
Issue date
May 27, 2025
Philip Morris Products S.A.
Oleg Fursa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetically controllable choke coil having central connection
Patent number
12,272,490
Issue date
Apr 8, 2025
Siemens Energy Global GmbH & Co. KG
Anatoliy Bunin
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Three-phase multi-tap balancing distribution transformer
Patent number
12,260,985
Issue date
Mar 25, 2025
Southwest Electric Co.
James Patrick Nunamaker
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Wind turbine power generation comprising an AC-DC-AC converter and...
Patent number
12,237,687
Issue date
Feb 25, 2025
Vestas Wind Systems A/S
Bo Sun
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multi-phase transformer
Patent number
12,211,640
Issue date
Jan 28, 2025
FANUC CORPORATION
Takuya Maeda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for carrying out a switchover of an on-load tap changer usin...
Patent number
12,176,140
Issue date
Dec 24, 2024
MASCHINENFABRIK REINHAUSEN GMBH
Kathrin Pruessing
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Device having a multimode antenna with variable width of conductive...
Patent number
12,136,514
Issue date
Nov 5, 2024
NuCurrent, Inc.
Alberto Peralta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum interrupter module for a tap changer, power diverter switch,...
Patent number
12,131,879
Issue date
Oct 29, 2024
HITACHI ENERGY LTD
Plamen Danchev Marinov
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Variable inductive displacement sensor, associated device, system a...
Patent number
12,092,495
Issue date
Sep 17, 2024
SAFRAN ELECTRONICS & DEFENSE
Mathieu Conq
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Resistor assembly for tap changer and tap changer
Patent number
12,087,478
Issue date
Sep 10, 2024
MASCHINENFABRIK REINHAUSEN GMBH
Christian Hammer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transformer arrangement and method for assembling a transformer arr...
Patent number
12,057,259
Issue date
Aug 6, 2024
HITACHI ENERGY LTD
Tommy Larsson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Flexible voltage transformation system
Patent number
12,028,001
Issue date
Jul 2, 2024
HITACHI ENERGY LTD
Ion C. Radu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dual range position sensing configurations for variable differentia...
Patent number
12,018,768
Issue date
Jun 25, 2024
Hamilton Sundstrand Corporation
Frank Perrelli
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Reactor
Patent number
12,020,840
Issue date
Jun 25, 2024
Kyosan Electric Mfg. Co., Ltd.
Satoshi Aikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetically controllable inductor coil in a series circuit
Patent number
12,009,662
Issue date
Jun 11, 2024
Siemens Energy Global GmbH & Co. KG
Matthias Kuestermann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Systems and methods for fault detection in variable differential tr...
Patent number
11,959,977
Issue date
Apr 16, 2024
Hamilton Sundstrand Corporation
Gordon Elliott Winer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Single structure multi mode antenna for wireless power transmission...
Patent number
11,955,809
Issue date
Apr 9, 2024
NuCurrent, Inc.
Vinit Singh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for carrying out a switchover of at least two switching mean...
Patent number
11,948,761
Issue date
Apr 2, 2024
MASCHINENFABRIK REINHAUSEN GMBH
Sebastian Schmid
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transformer assembly for electric grids and a related control method
Patent number
11,935,691
Issue date
Mar 19, 2024
HITACHI ENERGY LTD
Valentina Valori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multi-layer-multi-turn structure for high efficiency wireless commu...
Patent number
11,916,400
Issue date
Feb 27, 2024
NuCurrent, Inc.
Vinit Singh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Circuit assembly, electrolysis device, and method for operating a c...
Patent number
11,848,602
Issue date
Dec 19, 2023
Siemens Energy Global GmbH & Co. KG
Peter Utz
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Apparatus and method for improving efficiency of distributed genera...
Patent number
11,823,833
Issue date
Nov 21, 2023
SYNERGY INC.
Kwun Young Jang
G05 - CONTROLLING REGULATING
Information
Patent Grant
High frequency power supply system with closely regulated output fo...
Patent number
11,784,576
Issue date
Oct 10, 2023
Thermatool Corp.
Thomas G. Ignatowski
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Device having a multimode antenna with variable width of conductive...
Patent number
11,769,629
Issue date
Sep 26, 2023
NuCurrent, Inc.
Alberto Peralta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Device and method for degassing on-load tap-changer of transformer...
Patent number
11,759,729
Issue date
Sep 19, 2023
State Grid Liaoning Electric Power Research Institute
Yuxiao Zhou
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Assembly for automatic tap adjustment of a power transformer using...
Patent number
11,749,453
Issue date
Sep 5, 2023
WEG TRANSFORMERS USA LLC
Shamaun Hakim
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dual motor system
Patent number
11,739,759
Issue date
Aug 29, 2023
Nidec Motor Corporation
John G. Schrader
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrical power distribution network and process
Patent number
11,637,429
Issue date
Apr 25, 2023
Third Equation Ltd
Matthew Williams
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
STATE ANALYSIS OF AN ON-LOAD TAP CHANGER
Publication number
20250237700
Publication date
Jul 24, 2025
MASCHINENFABRIK REINHAUSEN GMBH
Sebastian Rehkopf
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NO-ARC ON-LOAD TAP CHANGER, SWITCHING CONTROL METHOD AND ELECTRICAL...
Publication number
20250218654
Publication date
Jul 3, 2025
Xiaoming LI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Device Having a Multimode Antenna With Variable Width of Conductive...
Publication number
20250182961
Publication date
Jun 5, 2025
NUCURRENT, INC.
Alberto Peralta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
A TAP CHANGER ARRANGEMENT AND A TRANSFORMER ARRANGEMENT COMPRISING...
Publication number
20250166886
Publication date
May 22, 2025
Hitachi Energy Ltd
Per KRAINER
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SYSTEMS AND METHODS FOR VARIABLE DIFFERENTIAL TRANSFORMERS SECONDAR...
Publication number
20250149238
Publication date
May 8, 2025
WOODWARD, INC.
Andrzej Jan Borzecki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TUNABLE INDUCTOR AND METHODS TO REALIZE TUNABLE INDUCTOR
Publication number
20250132088
Publication date
Apr 24, 2025
HAMILTON SUNDSTRAND CORPORATION
Bo Liu
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
HIGH-VOLTAGE WINDING AND METHOD FOR PREPARING HIGH-VOLTAGE WINDING
Publication number
20250111990
Publication date
Apr 3, 2025
JIANGSU SHEMAR ELECTRIC CO., LTD.
Bin MA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MONITORING A TRANSFORMER COMPRISING A TAP CHANGER
Publication number
20250110190
Publication date
Apr 3, 2025
Hitachi Energy Ltd
Nilanga Abeywickrama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
COUPLED INDUCTOR WITH ADJUSTABLE LEAKAGE INDUCTANCE
Publication number
20250029779
Publication date
Jan 23, 2025
ITG Electronics, Inc.
MARTIN KUO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSFORMER FOR CONTROLLING INDEPENDENT ACTIVE AND REACTIVE POWER F...
Publication number
20240428988
Publication date
Dec 26, 2024
SEN ENGINEERING SOLUTIONS, INC.
Kalyan K. SEN
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NOVEL HIGH EFFICIENCY CENTER TAPPED TRANSFORMER STRUCTURE
Publication number
20240379285
Publication date
Nov 14, 2024
Flex Ltd.
Hua Min XU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
On-load Tap Changer Module, Assembly Composed of an On-load Tap Cha...
Publication number
20240371568
Publication date
Nov 7, 2024
Infineon Technologeis Bipolar GmbH & Co. KG
Jürgen Schiele
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
PCB-BASED STRANDED, TWISTED EXCITATION WINDINGS IN ROTARY TRANSFORMERS
Publication number
20240355540
Publication date
Oct 24, 2024
BorgWarner Inc.
Mostak Mohammad
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Multi-Layer-Multi-Turn Structure For High Efficiency Wireless Commu...
Publication number
20240348091
Publication date
Oct 17, 2024
NUCURRENT, INC.
Vinit Singh
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSFORMER ASSEMBLY
Publication number
20240296988
Publication date
Sep 5, 2024
Murata Manufacturing Co., Ltd.
Hongzhong MA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Device Having a Multimode Antenna With Variable Width of Conductive...
Publication number
20240282514
Publication date
Aug 22, 2024
NUCURRENT, INC.
Alberto Peralta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method and System for Effective Handling of Reverse Power Flow for...
Publication number
20240192713
Publication date
Jun 13, 2024
ABB Schweiz AG
Simi Valsan
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TRANSFORMER ARRANGEMENT AND METHOD FOR ASSEMBLING A TRANSFORMER ARR...
Publication number
20240087805
Publication date
Mar 14, 2024
Hitachi Energy Switzerland AG
Tommy Larsson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SWITCH UNIT FOR A STEP TRANSFORMER, AND STEP TRANSFORMER HAVING A S...
Publication number
20240062969
Publication date
Feb 22, 2024
MASCHINENFABRIK REINHAUSEN GMBH
Christian Hammer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Micro-Stepping Cascading AC Voltage Regulator
Publication number
20240047132
Publication date
Feb 8, 2024
David Baretich
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ON-LOAD TAP CHANGER AND TAP-CHANGING TRANSFORMER HAVING AN ON-LOAD...
Publication number
20240029965
Publication date
Jan 25, 2024
MASCHINENFABRIK REINHAUSEN GMBH
Christian HAMMER
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SYSTEMS AND METHODS FOR FAULT DETECTION IN VARIABLE DIFFERENTIAL TR...
Publication number
20230417845
Publication date
Dec 28, 2023
HAMILTON SUNDSTRAND CORPORATION
Gordon Elliott Winer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ON-LOAD TAP CHANGER AND METHOD FOR ACTUATING AN ON-LOAD TAP CHANGER
Publication number
20230411072
Publication date
Dec 21, 2023
MASCHINENFABRIK REINHAUSEN GMBH
Christian Hammer
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
FULL RANGE BOOSTING DEVICE FOR ACCUMULATOR OF ON-LOAD TAP CHANGER,...
Publication number
20230402227
Publication date
Dec 14, 2023
Beijing Aerospace Control Device Institute
Zhuangzhuang Li
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ELECTRICAL ASSEMBLY
Publication number
20230402935
Publication date
Dec 14, 2023
General Electric Technology GmbH
Jari LAVAPURO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
MULTI-PHASE ELECTRICAL TRANSFORMER AND POWER CONTROL APPARATUS
Publication number
20230308034
Publication date
Sep 28, 2023
THIRD EQUATION LTD
Andrew John SCOBIE
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
VARIABLE-IMPEDANCE ELECTRIC TRANSFORMER
Publication number
20230290567
Publication date
Sep 14, 2023
PROLEC-GE INTERNACIONAL, S. DE R. L. DE C. V.
Enrique BETANCOURT RAMIREZ
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
TUNABLE INTEGRATED VOLTAGE REGULATOR
Publication number
20230261570
Publication date
Aug 17, 2023
Applied Materials, Inc.
Meghna Maheshkumar Patel
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
A TAP CHANGER AND A TRANSFORMER ARRANGEMENT COMPRISING THE TAP CHANGER
Publication number
20230260695
Publication date
Aug 17, 2023
Tommy Larsson
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OFFSET TRANSFORMER STRUCTURE
Publication number
20230230764
Publication date
Jul 20, 2023
Sehat Sutardja
H01 - BASIC ELECTRIC ELEMENTS