Growing community of inventors

Berlin, Germany

Hans-Joachim Lippold

Average Co-Inventor Count = 3.83

ph-index = 3

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 = 21

Hans-Joachim Lippold ↔ Andreas Brandhofer (2 patents)Hans-Joachim Lippold ↔ Matthias Schuster (2 patents)Hans-Joachim Lippold ↔ Jorgen Knudsen (1 patent)Hans-Joachim Lippold ↔ Margit Hofmann (1 patent)Hans-Joachim Lippold ↔ Hans Leibold (1 patent)Hans-Joachim Lippold ↔ Peter Pfeuffer (1 patent)Hans-Joachim Lippold ↔ Markus Fronhöfer (1 patent)Hans-Joachim LippoldHans-Joachim Lippold (3 patents)Andreas BrandhoferAndreas Brandhofer (3 patents)Matthias SchusterMatthias Schuster (2 patents)Jorgen KnudsenJorgen Knudsen (7 patents)Margit HofmannMargit Hofmann (5 patents)Hans LeiboldHans Leibold (3 patents)Peter PfeufferPeter Pfeuffer (2 patents)Markus FronhöferMarkus Fronhöfer (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Firma Carl Freudenberg (3 from 629 patents)


3 patents:

1. 6299660 - Accordion filter with a protective mask

2. 6274039 - Cartridge filter with frame

3. 6059966 - Cartridge filter with frame

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12/10/2025
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