Growing community of inventors

Grosshansdorf, Germany

Harald Sperl

Average Co-Inventor Count = 6.00

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 = 3

Harald Sperl ↔ Karl Ries (1 patent)Harald Sperl ↔ Kurt Hannoschock (1 patent)Harald Sperl ↔ Gunter Basler (1 patent)Harald Sperl ↔ Krsto-Marijan Rozic (1 patent)Harald Sperl ↔ Kurt Weinschenk (1 patent)Harald SperlHarald Sperl (1 patent)Karl RiesKarl Ries (18 patents)Kurt HannoschockKurt Hannoschock (9 patents)Gunter BaslerGunter Basler (2 patents)Krsto-Marijan RozicKrsto-Marijan Rozic (2 patents)Kurt WeinschenkKurt Weinschenk (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mannesmann Aktiengesellschaft (1 from 1,150 patents)

2. Rich. Seifert & Co. Gmbh & Co. Kg (1 from 1 patent)


1 patent:

1. 4311905 - Film strip positioning for X-ray testing of pipes

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idiyas.com
as of
12/14/2025
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