DS

David Sumberg

Apple: 2 patents #1,271 of 4,359Top 30%
Overall (2019): #179,154 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Patent #TitleCo-InventorsDate
10469044 Power mitigation for loudspeaker amplifiers James M. Hollabaugh, Hannes Breitschaedel 2019-11-05
10194249 Multi-coil loudspeaker driver Sylvain J. Choisel, Simon K. Porter 2019-01-29