HL

Helmut List

UN Unknown: 7 patents #1,646 of 83,584Top 2%
AI Avl Medical Instruments: 6 patents #8 of 74Top 15%
AG Avl List Gmbh: 5 patents #35 of 613Top 6%
AA Avl Ag: 5 patents #5 of 29Top 20%
FA F. Hoffmann-La Roche Ag: 1 patents #201 of 425Top 50%
Overall (All Time): #145,864 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
4216403 Monoaxially oriented piezoelectric polymer transducer for measurement of mechanical values on bodies Peter W. Krempl, Peter Claassen 1980-08-05
4194401 Transducer for measuring the internal pressure in pipes Peter Claassen, Rudolf Zeiringer 1980-03-25