Growing community of inventors

Nürnberg, Germany

Christian Leibeck

Average Co-Inventor Count = 1.16

ph-index = 9

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 183

Christian LeibeckAndré Ehrlich (3 patents)Christian LeibeckBastian Weber (3 patents)Christian LeibeckRoland Sonntag (1 patent)Christian LeibeckChristian Leibeck (18 patents)André EhrlichAndré Ehrlich (3 patents)Bastian WeberBastian Weber (3 patents)Roland SonntagRoland Sonntag (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. J.s. Staedtler Gmbh & Co. (8 from 49 patents)

2. J.s. Staedtler Gmbh & Co. Kg (8 from 34 patents)

3. Staedtler Mars Gmbh & Co. Kg (2 from 26 patents)


18 patents:

1. D781958 - Cap

2. D765782 - Pencil with cap and stylus

3. D733220 - Pencil with stylus

4. D647965 - Writing instrument

5. D626996 - Writing instrument

6. D607054 - Instrument for writing, drawing or painting

7. D605695 - Instrument for writing, drawing or painting

8. D582979 - Instrument for writing, drawing or painting

9. D551708 - Instrument for writing, drawing or painting

10. D531665 - Writing, drawing or painting utensil

11. D530747 - Writing, drawing or painting utensil

12. D518522 - Writing, drawing or painting utensil

13. 6364100 - Case for rod-shaped objects

14. D427433 - Case

15. D419188 - Combined compass and writing instrument

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as of
12/11/2025
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