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John R. Ballard — 18 Patents

UMUniversity of Minnesota: 5 patents #237 of 2,951Top 9%
Apple: 5 patents #5,490 of 18,612Top 30%
Rolls-Royce Plc: 4 patents #614 of 1,164Top 55%
Boston Scientific Scimed: 3 patents #1,319 of 3,579Top 40%
AMAlpheus Medical: 2 patents #4 of 5Top 80%
Waconia, MN: #12 of 161 inventorsTop 8%
Minnesota: #4,045 of 52,454 inventorsTop 8%
Overall (All Time): #245,716 of 4,157,543Top 6%
18 Patents All Time
John R. Ballard has been granted 18 US patents while listed as an inventor at Apple. The first was granted in 1981 and the most recent in September 2025. John R. Ballard ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list John R. Ballard in Waconia, MN, US.

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12427345 Ultrasound arrays for enhanced sonodynamic therapy for treating cancer Vijay AGARWAL, Braden Eliason, Jeremy Ling, Gregg MILLER 2025-09-30
12186011 Devices, systems, and methods for pulsed electric field treatment of the duodenum Robert D'Agostino, John Samuel Batchelder, John Logan, Alex A. Peterson, Michael P. Brenzel +3 more 2025-01-07
12138150 Methods and devices for minimally invasive transcatheter coronary artery bypass grafting Annamaria Szabolcs, Jeffrey W. Reineke, Andrew D. Bicek, Steven L. Kangas 2024-11-12 $77,829,000
12097392 Incoherent field sonodynamic therapy for treating cancer Vijay AGARWAL, Braden Eliason, Jeremy Ling, Gregg MILLER 2024-09-24
12089861 Intravascular lithotripsy system and device Sam Batchelder, Robert D'Agostino, Michael P. Brenzel, Jason W. Staab 2024-09-17
11957369 Intravascular lithotripsy systems and methods Sam Batchelder, Robert D'Agostino, Michael P. Brenzel, Jacon W. Staab 2024-04-16
11896248 Systems, devices and methods for generating subsonic pressure waves in intravascular lithotripsy Sam Batchelder, Robert D'Agostino, Michael P. Brenzel, Jason W. Staab 2024-02-13
11877761 Systems, devices and methods for monitoring voltage and current and controlling voltage of voltage pulse generators Sam Batchelder, Robert D'Agostino, Michael P. Brenzel, Jason W. Staab 2024-01-23
11801066 Systems, devices and methods for selection of arc location within a lithoplasty balloon spark gap Sam Batchelder, Robert D'Agostino, Michael P. Brenzel, Jason W. Staab 2023-10-31
11076836 Dual mode ultrasound transducer (DMUT) system and method for controlling delivery of ultrasound therapy Emad S. Ebbini, Andrew J. Casper, Dalong Liu 2021-08-03
11045164 Noninvasive fluid and electrolyte balance monitor Jeffrey W. Reineke, Andrew D. Bicek 2021-06-29 $57,723,000
10531945 Methods and devices for minimally invasive transcatheter coronary artery bypass grafting Annamaria Szabolcs, Jeffrey W. Reineke, Andrew D. Bicek, Steven L. Kangas 2020-01-14 $30,134,000
10231712 Dual mode ultrasound transducer (DMUT) system and method for controlling delivery of ultrasound therapy Emad S. Ebbini, Andrew J. Casper, Dalong Liu 2019-03-19
10022106 Holder for a transesophageal echocardiography probe Emil D. Missov, Andrew D. Bicek, Claire Elizabeth Leitgen, Jacie Jo Elaine Groeschel, Andrew Richard Hohs +2 more 2018-07-17
4566270 Gas turbine engine infra-red radiation suppressor Peter H. Timmis, Michael Buller 1986-01-28
4502875 Air intakes of aircraft mounted gas turbine engines — 1985-03-05
4425756 Gas turbine engine and its associated air intake system George H. Bennett, Leslie Lee 1984-01-17
4291530 Gas turbine engine cowling — 1981-09-29

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Jeffrey J. Beaver18
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Chung-Wen Lo18
Andrew KENNEDY18
Max Heimel18
Kevin Skadron18
John B. Halander18