Markus Erni has been granted 10 US patents while listed as an inventor at Rieter Machine Works . The first was granted in 1987 and the most recent in November 2025. Markus Erni ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Markus Erni in Winterthur, CH.
Patents per Year Patents granted per year, 1987 to 1993 Bar chart with a peak of 3 patents in 1991. peak 3 1987: 2 patents 1987 1990: 1 patents 1990 1991: 3 patents 1991 1992: 2 patents 1992 1993: 1 patents 1993
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date
12472675 Solenoid valve Manuel Keel 2025-11-18
5185993 Spinning machine having a peg tray conveyor Isidor Fritschi , Urs Keller , Urs Meyer , Jurg Wernli 1993-02-16
5172540 Apparatus for changing bobbin tubes and tube gripper therefor Joerg Wernli , Daniel Brennwalder , Isidor Fritschi , Andreas Wanzenried 1992-12-22
5113123 Ring spinning machine Hans Noser 1992-05-12
5036656 Apparatus for block changing in a ring spinning machine Peter Anderegg , Daniel Brennwalder 1991-08-06
5029438 Apparatus for changing bobbin tubes and tube gripper therefor Joerg Wernli , Daniel Brennwalder , Isidor Fritschi , Andreas Wanzenried 1991-07-09
5014505 Apparatus for changing bobbin tubes and tube gripper therefor Joerg Wernli , Daniel Brennwalder , Isidor Fritschi , Andreas Wanzenried 1991-05-14
4944033 Communications system for an installation and method of controlling such installation — 1990-07-24
4715550 Method and apparatus for controlling the effective length of thread packages Kurt Salvisberg 1987-12-29
4656465 Method and arrangement for evaluating the performance of a yarn processing machine Kurt Salvisberg , Marcel Zund 1987-04-07