Growing community of inventors

Bad Homburg, Germany

Hellmuth Bollman

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 = 14

Hellmuth BollmanErnst Heimrath (1 patent)Hellmuth BollmanHellmuth Bollman (1 patent)Ernst HeimrathErnst Heimrath (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Braun Aktiengesellschaft (1 from 527 patents)


1 patent:

1. 4208957 - Automatic filter-type coffee maker

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12/31/2025
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