Growing community of inventors

Schwaigern, Germany

Helmut Karl

Average Co-Inventor Count = 4.00

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 = 20

Helmut KarlOldrich Krizek (3 patents)Helmut KarlEckhardt Schmid (2 patents)Helmut KarlEugen Gorner (2 patents)Helmut KarlReinhard Edele (1 patent)Helmut KarlReinhard Johannes (1 patent)Helmut KarlAlessandro Ortale (1 patent)Helmut KarlHelmut Karl (3 patents)Oldrich KrizekOldrich Krizek (15 patents)Eckhardt SchmidEckhardt Schmid (62 patents)Eugen GornerEugen Gorner (2 patents)Reinhard EdeleReinhard Edele (17 patents)Reinhard JohannesReinhard Johannes (3 patents)Alessandro OrtaleAlessandro Ortale (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Itt Automotive Europe Gmbh (2 from 194 patents)

2. Swf Auto-electric Gmbh (1 from 91 patents)


3 patents:

1. 5820286 - Fixing means for a windshield wiper system

2. 5454134 - Windshield washing system with fluid pipe in wiper shaft

3. 5398370 - Wiper system having a depression for accommodating a fluid hose

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as of
12/30/2025
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