HJ

Hugo Johannes

PK Preh-Werke Gmbh & Co. Kg: 2 patents #22 of 67Top 35%
📍 Bad Neustadt an der Saale, DE: #61 of 147 inventorsTop 45%
Overall (All Time): #2,226,459 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6231787 Method for manufacturing powdery, vitreous carbon useful for making pastes having predetermined electrical conductivity Peter Ambros, Franz Kissner 2001-05-15
6030552 Paste having predetermined electrical conductivity, and resistive film made from the paste Peter Ambros, Franz Kissner 2000-02-29