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Nordrach, Germany

Erwin Junker Maschinenfabrik Gmbh

USPTO Granted Patents = 34

EPO Patents = 21

Trademarks = 1

Forward Citations = 112

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8 inventors (with patents filed for the assignee):

Erwin Junker (25 out of 37 patents)

Georg Himmelsbach (6 out of 9 patents)

Hubert Mueller (2 out of 5 patents)

4. Peter Reim (1 out of 2 patents)

5. Werner Huettig (1 out of 1 patent)

6. August Baumann (1 out of 1 patent)

7. Juergen Lindner (1 out of 1 patent)

8. George Himmelsbach (1 out of 1 patent)

9. Erwin Junker (0 patent)

10. Hubert MÜLLER (0 patent)

34 patents: Sort by Forward Citations

1. 11389918 - Grinding-supporting device (2022-07-19),

2. 10576602 - Method for the complete grinding of workpieces in the form of shafts having cylindrical and profiled sections (2020-03-03),

3. 10537971 - Measuring steady rest for supporting and measuring central workpiece regions grinding machine with such a measuring steady rest, and method for supporting and measuring central workpiece regions (2020-01-21),

4. 10532443 - Method and grinding machine for grinding grooved workpieces (2020-01-14),

5. 10464182 - Method and grinding machine for grinding external and internal contours of workpieces in one clamping (2019-11-05),

6. 10293450 - Steady rest for supporting central workpiece regions during the machining of central and/or eccentric workpiece regions, in particular bearing points on crankshafts, and grinding machine having such a steady rest (2019-05-21),

7. 10092994 - Grinding machine with pivotable mounting of a grinding spindle (2018-10-09),

8. 10058968 - Grinding machine and method for grinding workpieces that have axial bores and planar external surfaces to be machined on both sides (2018-08-28),

9. 9475121 - Machine and method for turning at least flat shoulders on a crankshaft that surround crankpins (2016-10-25),

10. 9358605 - Method and production line for machining a crankshaft (2016-06-07),

11. 9108287 - Method for grinding the main and rod bearing of a crankshaft by external cylindrical grinding (2015-08-18),

12. 8715036 - Grinding center and method for the simultaneous grinding of multiple crankshaft bearings (2014-05-06),

13. 8678881 - Grinding center and method for simultaneous grinding of a plurality of bearings and end-side surfaces of crankshafts (2014-03-25),

14. 8641025 - Method for the support of a rotating workpiece during grinding and a hydrodynamic steady rest (2014-02-04),

15. 8506357 - Method for grinding the main and rod bearings of a crankshaft by external cylindrical grinding and apparatus for carrying out the method (2013-08-13),

Erwin Junker Maschinenfabrik GmbH is a leading manufacturer of grinding machines for various industries. With over 55 years of experience, the company specializes in developing innovative and high-quality solutions for precision grinding, cylindrical grinding, and non-cylindrical grinding applications. Their advanced machinery and expertise have made them a preferred choice for customers worldwide. For more information, please visit their website.

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Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

34 Patents

#1 in Nordrach

#1,479 in Germany

#19,044 in the World

Nordrach, Germany

Erwin Junker Maschinenfabrik Gmbh

Forward Citations = 112

8 inventors:

Erwin Junker (25 out of 37 patents)

Georg Himmelsbach (6 out of 9 patents)

Hubert Mueller (2 out of 5 patents)

4. Peter Reim (1 out of 2 patents)

5. Werner Huettig (1 out of 1 patent)

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