Growing community of inventors

Cologne, Germany

Karl Zietan

Average Co-Inventor Count = 3.00

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 = 4

Karl ZietanKarl Lohmer (1 patent)Karl ZietanHermann Seiz (1 patent)Karl ZietanKarl Zietan (1 patent)Karl LohmerKarl Lohmer (6 patents)Hermann SeizHermann Seiz (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Agfa-gevaert Ag (1 from 1,473 patents)


1 patent:

1. 4018609 - Color photographic multilayered material with layers of acid ashed

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12/7/2025
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