HF

Helmut Federmann

FG Felten & Guilleaume Energietechnik Gmbh: 6 patents #1 of 9Top 15%
FA Felten & Guilleaume Carlswerk Aktiengesellschaft: 2 patents #2 of 20Top 10%
Overall (All Time): #526,795 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
5802784 Window apparatus for providing and directing glare-free sunlight to a room 1998-09-08
4943714 Method of continuous measurement of damping in an elongated light wave conductor-sensor having only one accessible end Friedrich K. Levacher, Georg Noack, Anton Kraus 1990-07-24
4900920 Device for and method of measuring minute elongations by means of light wave conductor sensors Friedrich K. Levacher, Georg Noack, Anton Kraus 1990-02-13
4900922 Arrangement of a light wave conductor-phase sensor for the measurement of minute elongations Friedrich K. Levacher, Georg Noack, Anton Kraus 1990-02-13
4840480 Light conduit arrangement for monitoring a physical condition of a structural part J. Peter Starke, Friedrich K. Levacher 1989-06-20
4840452 Light wave conductor-sensor for tension Friedrich K. Levacher, Georg Noack 1989-06-20
4634217 High tensile wire provided with light guide sensor Friedrich K. Levacher 1987-01-06
4421497 Fiber-reinforced drive shaft Joachim Bausch 1983-12-20
4380443 Fiber-reinforced drive shaft Joachim Bausch 1983-04-19
4358284 Fiber-reinforced driveshaft Joachim Bausch 1982-11-09