DA

Derek R. Allen

Tesla: 1 patents #501 of 838Top 60%
Overall (All Time): #640,326 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10011157 Visor for continuously extended windshield Miklos Szentkiralyi, Craig Cochrane, Jorge C. Fialho, Joonas Vartola, Franz Von Holzhausen 2018-07-03
5498841 Dual acoustical passage stethoscope 1996-03-12
D323033 Disposable stethoscope 1992-01-07
4991686 Disposable stethoscope 1991-02-12
4928786 Self-sealing dual stethoscope head 1990-05-29
4569413 Enhanced audiotransmission stethoscope 1986-02-11
D256951 Dual stethoscope microphone 1980-09-16
4212368 Angularly related dual stethoscope head 1980-07-15