Growing community of inventors

Auggen, Germany

Angelika Frehn

Average Co-Inventor Count = 2.00

ph-index = 1

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 = 1

Angelika FrehnKlaus Hieke (1 patent)Angelika FrehnAngelika Frehn (1 patent)Klaus HiekeKlaus Hieke (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Buck Werke Gmbh & Co. (1 from 38 patents)


1 patent:

1. 5541009 - Process for preparing water-based pyrotechnic active compositions

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12/16/2025
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