AE

Alfons Ernst

DG Dr. Johannes Heidenhain Gmbh: 32 patents #3 of 417Top 1%
JG Johannes Heidenhain Gmbh: 9 patents #2 of 95Top 3%
📍 Traunreut, DE: #1 of 123 inventorsTop 1%
Overall (All Time): #74,129 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDate
5553390 Length measuring system Gunther Nelle 1996-09-10
5548902 Multi-coordinate probe 1996-08-27
5509211 Multi-coordinate probe 1996-04-23
5066857 Incremental angle encoder having spiral scanning field and multiple discs 1991-11-19
4990767 Position measuring apparatus with multiple scanning locations Walter Schmitt, Norbert Huber 1991-02-05
4987302 Photoelectric angle measuring apparatus whose optically projecting focal line coincides with the axis of rotation of the scale carrier Hermann Meyer 1991-01-22
4972599 Position measuring device with an adjusting device 1990-11-27
4951399 Position measuring device 1990-08-28
4912856 Position measuring device 1990-04-03
4897929 Multi-coordinate probe Dieter Spark 1990-02-06
4819546 Device for measuring feed movement Alfons Spies 1989-04-11
4782229 Photoelectric displacement measuring device for obtaining harmonic free signals 1988-11-01
4763417 Multi-coordinate probe 1988-08-16
4743754 Length- or angle-measuring arrangement 1988-05-10
4712088 Multistage angle encoder with an improved allocation of coarse code information to fine code information 1987-12-08
4700062 Position measuring device with a scanned absolute scale 1987-10-13
4631404 Position measuring system Horst Burkhardt, Holmer Dangschat, Horst Wogatzke 1986-12-23
4602436 Position measuring system 1986-07-29
4581826 Sensing pin mounting arrangement for multicoordinate sensing head 1986-04-15
4567665 Position sensing apparatus 1986-02-04
D282460 Electronic hand wheel for controlling the operating components of a machine or the like 1986-02-04
4564294 Encapsulated photoelectric measuring system 1986-01-14
4549354 Measuring system Alfred Affa 1985-10-29
4549356 Sealing arrangement for multicoordinate sensing head 1985-10-29
4549808 Movable aperture photoelectric measuring instrument 1985-10-29