Patents-Review.com
ClassID:

201630 ⎘

H01F21/02 - CPC Classification

Classification description:

Variable inductances or transformers of the signal type continuously variable, e.g. variometers

Sub-classes:
Recent Application in this class:
#1
20260081516
2026-03-19

SYSTEM AND METHOD FOR HIGH EFFICIENCY WIDE-VOLTAGE-GAIN POWER CONVERSION

 #2
20250218642
2025-07-03

ADJUSTABLE INDUCTOR, AND TRANSMISSION CIRCUIT FOR MAGNETIC RESONANCE

 #3
20250191825
2025-06-12

RVDT CONNECTOR

 #4
20250182961
2025-06-05

Device Having a Multimode Antenna With Variable Width of Conductive Wire

 #5
20240282514
2024-08-22

Device having a multimode antenna with variable width of conductive wire

 #6
20230230743
2023-07-20

RVDT connector

 #7
20230109147
2023-04-06

Device having a multimode antenna with variable width of conductive wire

 #8
20220407234
2022-12-22

Radiating element and associated antenna and manufacturing method

 #9
20220228652
2022-07-21

LOSSLESS CONTINUOUSLY ADJUSTABLE DEVICES

 #10
20220123750
2022-04-21

Keystroke detection device, keyboard, and keystroke detection method

 #11
20220123749
2022-04-21

Keystroke detection device, keyboard, and keystroke detection method

 #12
20220123747
2022-04-21

APPARATUS COMPRISING A MOVABLE OBJECT AND A DEVICE FOR DETECTING A MOVEMENT OF THE OBJECT, INPUT DEVICE INCLUDING THE APPARATUS, AND METHOD OF OPERATING THE APPARATUS

 #13
20220123468
2022-04-21

Switched coupled inductance phase shift mechanism

 #14
20210211014
2021-07-08

Rotary connector module for device forming quasi three-dimentional image

 #15
20210210270
2021-07-08

RESONANT ROTATING TRANSFORMER

 #16
20210091744
2021-03-25

Electronically adjustable inductor circuit

 #17
20210036618
2021-02-04

Reconfigurable inductor

 #18
20200395157
2020-12-17

Tuning systems, devices and methods

 #19
20200381825
2020-12-03

Switched coupled inductance phase shift mechanism

 #20
20200286657
2020-09-10

Magnetically actuated tunable soft electronics

 #21
20200211755
2020-07-02

Adjustable leakage inductance transformer

 #22
20200119590
2020-04-16

Device having a multimode antenna with variable width of conductive wire

 #23
20200112176
2020-04-09

Device having a multimode antenna with conductive wire width

 #24
20190088398
2019-03-21

Tuning systems, devices, and methods

 #25
20170373133
2017-12-28

Magnetic core inductors for integrated voltage regulator

 #26
20170103850
2017-04-13

Coil device and inductance-changing mechanism

 #27
20170019086
2017-01-19

Tunable reactance devices, and methods of making and using the same

 #28
20160372247
2016-12-22

Variable inductance inductor and variable inductance inductor module

 #29
20160250932
2016-09-01

Systems, methods, and apparatus for partial electronics integration in vehicle pads for wireless power transfer applications

 #30
20160100124
2016-04-07

TV system with wireless power transmitter

 #31
20150377940
2015-12-31

Coil architecture for inductive sensors

 #32
20150270875
2015-09-24

Docking station for inductively charged portable electronic device

 #33
20150242660
2015-08-27

Point of sale inductive systems and methods

 #34
20150210597
2015-07-30

Oxide ceramic and ceramic electronic component

 #35
20150029397
2015-01-29

TV with integrated wireless power transmitter

 #36
20140375259
2014-12-25

Steering wheel and car using the steering wheel

 #37
20140347025
2014-11-27

Method of fabricating magnetic core inductors for an integrated voltage regulator

 #38
20140333260
2014-11-13

Charging coil system for a drop-in target device such as a toothbrush

 #39
20140285299
2014-09-25

Tuning systems, devices and methods

 #40
20140176057
2014-06-26

System of securing a wide-range of devices during wireless charging

 #41
20130335017
2013-12-19

Contactless power feeding apparatus and contactless power feeding method

 #42
20130049682
2013-02-28

Docking station for inductively charged portable electronic device

 #43
20120188671
2012-07-26

T-coil network design for improved bandwidth and electrostatic discharge immunity

 #44
20120018842
2012-01-26

Switching element, variable inductor, and electronic circuit device having circuit configuration incorporating the switching element and the variable inductor

 #45
20110260819
2011-10-27

CONTINUOUSLY TUNABLE INDUCTOR WITH VARIABLE RESISTORS

 #46
20110259960
2011-10-27

Point of sale inductive systems and methods

 #47
20110259953
2011-10-27

Point of sale inductive systems and methods

 #48
20110163824
2011-07-07

Electronic circuit and electronic device

 #49
20110113401
2011-05-12

T-coil network design for improved bandwidth and electrostatic discharge immunity

 #50
20090251267
2009-10-08

Inductors and methods of operating inductors

 #51
20090146636
2009-06-11

Switching element, variable inductor, and electronic circuit device having circuit configuration incorporating the switching element and the variable inductor

 #52
20090040683
2009-02-12

Electrical devices having adjustable capacitance

 #53
20080197837
2008-08-21

Method and device for locating the right or left position of a wheel of a vehicle

 #54
20080176752
2008-07-24

LASER TRIMMING TO TUNE THE RESONANCE FREQUENCY OF A SPIRAL RESONATOR, THE CHARACTERISTICS OF A HIGH TEMPERATURE SUPERCONDUCTOR FILTER COMPRISED OF SPIRAL RESONATORS, OR THE RESONANCE FREQUENCY OF A PLANAR COIL

 #55
20080018424
2008-01-24

INDUCTIVE SENSOR

 #56
20060220775
2006-10-05

Variable inductor

 #57
20060132258
2006-06-22

Method and apparatus for large ratio radio frequency variable inductor and use in radio frequency power matching systems

 #58
20050256009
2005-11-17

Laser trimming to tune the resonance frequency of a spiral resonator, the characteristics of a high temperature superconductor filter comprised of spiral resonators, or the resonance of a planar coil

 #59
20050146413
2005-07-07

Electrical devices having adjustable electrical characteristics