Growing community of inventors

Oberhausen, Germany

Helmut David

Average Co-Inventor Count = 2.57

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 = 16

Helmut DavidRainer Schmidt (2 patents)Helmut DavidJ Ernst Malik (1 patent)Helmut DavidAlfred Schlemenat (1 patent)Helmut DavidErnst Malik (1 patent)Helmut DavidHelmut David (3 patents)Rainer SchmidtRainer Schmidt (5 patents)J Ernst MalikJ Ernst Malik (2 patents)Alfred SchlemenatAlfred Schlemenat (1 patent)Ernst MalikErnst Malik (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Man Gutehoffnungshutte Aktiengesellschaft (2 from 67 patents)

2. Man Gutehoffnungshuette Gmbh (1 from 17 patents)


3 patents:

1. 5065815 - Force free suspension of heat exchange bundles with high temperature

2. 5047201 - Seal for a vessel connection of a hot pipeline

3. 4852644 - Tubular heat exchanger

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idiyas.com
as of
12/18/2025
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