Inventor

Kai Kroll

Inventor

Minnetonka, MN, US

Overview

1995–2021

Patent span

Human necessities

Primary field (CPC A)

Patents· 63 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Nprimary

A61NElectrotherapy40%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers32%

A61FFilters implantable into blood vessels11%

A61BDiagnosis8%

A61KPreparations for medical, dental or toiletry purposes4%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy2%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution2%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems1%

PatentTitleYear

10,939,957Non-thermal ablation system for treating tissue2021 10,842,555Catheter for treating tissue with non-thermal ablation2020 10,736,689Low-corrosion electrode for treating tissue2020 10,575,899Non-thermal ablation system for treating BPH and other growths2020 10,085,800Non-thermal ablation system for treating tissue2018 9,597,145'Non-thermal ablation system for treating tissue'2017 9,211,155'Non-thermal ablation system for treating BPH and other growths'2015 8,600,494'Method and device for treating abnormal tissue growth with electrical therapy'2013 8,401,637'Medium voltage therapy applications in treating cardiac arrest'2013 8,024,048'Method and device for treating cancer with electrical therapy in conjunction with chemotherapeutic agents and radiation therapy'2011 8,014,854'Method and device for treating abnormal tissue growth with electrical therapy'2011 7,720,549'Partially implantable system for the electrical treatment of abnormal tissue growth'2010 7,706,864'Method and apparatus for electrically forcing cardiac output in an arrhythmia patient'2010 7,412,285'Method and device for treating cancer with electrical therapy in conjunction with chemotherapeutic agents and radiation therapy'2008 7,072,712'Disposable external defibrillator with hinged housing halves'2006 6,875,166'Method for creating a coupling between a device and an ear structure in an implantable hearing assistance device'2005 6,853,859'Electrical cardiac output forcer'2005 6,755,778'Method and apparatus for reduced feedback in implantable hearing assistance systems'2004 6,689,045'Method and apparatus for improving signal quality in implantable hearing systems'2004 6,592,513'Method for creating a coupling between a device and an ear structure in an implantable hearing assistance device'2003 6,585,637'Method and apparatus for fixation type feedback reduction in implantable hearing assistance systems'2003 6,567,697'External defibrillator with electrical CPR assist'2003 6,560,484'Method and apparatus for electrically forcing cardiac output in an arrhythmia patient'2003 6,540,662'Method and apparatus for reduced feedback in implantable hearing assistance systems'2003 6,491,722'Dual path implantable hearing assistance device'2002 6,488,616'Hearing aid transducer support'2002 6,408,206'Disposable external defibrillator'2002 6,387,038'Air cell mountable support shaft'2002 6,364,825'Method and apparatus for improving signal quality in implantable hearing systems'2002 6,351,670'Electrical cardiac assist for an implantable syncope monitor'2002 6,342,035'Hearing assistance device sensing otovibratory or otoacoustic emissions evoked by middle ear vibrations'2002 6,315,710'Hearing system with middle ear transducer mount'2001 6,314,319'Method and apparatus for temporarily electrically forcing cardiac output in a tachyarrhythmia patient'2001 6,267,731'Method and apparatus for reduced feedback in implantable hearing assistance systems'2001 6,261,224'Piezoelectric film transducer for cochlear prosthetic'2001 6,261,223'Method and apparatus for fixation type feedback reduction in implantable hearing assistance system'2001 6,230,056'Method and apparatus for preventing clotting during a trial fibrillation'2001 6,185,457'Method and apparatus for electrically forcing cardiac output in an arrhythmia patient'2001 6,171,229'Ossicular transducer attachment for an implantable hearing device'2001 6,167,306'Method and apparatus for electrically forcing cardiac output in an arrhythmia patient'2000 6,050,933'Hearing aid transducer support'2000 6,010,532'Dual path implantable hearing assistance device'2000 6,005,955'Middle ear transducer'1999 6,001,129'Hearing aid transducer support'1999 5,997,466'Implantable hearing system having multiple transducers'1999 5,978,703'Method and apparatus for temporarily electrically forcing cardiac output in a tachyarrhythmia patient'1999 5,925,066'Atrial arrythmia sensor with drug and electrical therapy control apparatus'1999 5,899,847'Implantable middle-ear hearing assist system using piezoelectric transducer film'1999 5,879,283'Implantable hearing system having multiple transducers'1999 5,871,510'Method and apparatus for temporarily electrically forcing cardiac output as a backup for tachycardia patients'1999 5,842,967'Contactless transducer stimulation and sensing of ossicular chain'1998 5,836,863'Hearing aid transducer support'1998 5,833,712'Implantable defibrillator system for generating a biphasic waveform'1998 5,782,883'Suboptimal output device to manage cardiac tachyarrhythmias'1998 5,762,583'Piezoelectric film transducer'1998 5,741,303'Electrode back-charging pre-treatment system for an implantable cardioverter defibrillator'1998 5,735,876'Electrical cardiac output forcing method and apparatus for an atrial defibrillator'1998 5,730,699'Implantable hearing system having multiple transducers'1998 5,718,718'Method and apparatus for polarity reversal of consecutive defibrillation countershocks having back biasing precharge pulses'1998 5,707,338'Stapes vibrator'1998 5,584,866'Method and apparatus for temporarily electrically forcing tachyarrhythymia patient'1996 5,531,770'Device and method for determining defibrillation thresholds'1996 5,391,186'Method and apparatus for utilizing short tau capacitors in an implantable cardioverter defibrillator'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1998Patents assigned to ANGEION CORP (5)· patent assignee history

1995–2005Based in Minnetonka, MN, US· patent location history

1998–2005Patents assigned to ST CROIX MEDICAL INC (27)· patent assignee history

1998–2013Patents assigned to GALVANI LTD (14)· patent assignee history

2001–2013Based in Minneapolis, MN, US· patent location history

2013–2020Patents assigned to KROLL KAI (6)· patent assignee history

2013–2021Based in Plymouth, MN, US· patent location history

2015–2021Patents assigned to PROSTACARE PTY LTD (7)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ST CROIX MEDICAL INC	27	1998–2005
GALVANI LTD	14	1998–2013
PROSTACARE PTY LTD	7	2015–2021
KROLL KAIself	6	2013–2020
ANGEION CORP	5	1995–1998

Locations

Location	Patents	Span
Minnetonka, Minnesota, US	37	1995–2005
Minneapolis, Minnesota, US	18	2001–2013
Plymouth, Minnesota, US	8	2013–2021