FB

Fred O. Barthold

📍 Leucadia, CA: #14 of 77 inventorsTop 20%
🗺 California: #82,707 of 386,348 inventorsTop 25%
Overall (All Time): #734,234 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
9438099 Harmonic displacement reduction 2016-09-06
9251945 Planar core with high magnetic volume utilization 2016-02-02
9111678 Planar core-type uniform external field equalizer and fabrication 2015-08-18
7812577 Sepic fed buck converter 2010-10-12
7777458 DC-DC converter 2010-08-17
5436818 Full wave buck-boost power converter with buck power converter properties 1995-07-25
4734839 Source volt-ampere/load volt-ampere differential converter 1988-03-29