Growing community of inventors

Herrieden, Germany

Richard Kolbl

Average Co-Inventor Count = 2.50

ph-index = 2

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

Richard KolblBernd Mehlan (3 patents)Richard KolblJosef Gress (1 patent)Richard KolblRudolf Leichs (1 patent)Richard KolblFrank Dorrbeck (1 patent)Richard KolblRichard Kolbl (3 patents)Bernd MehlanBernd Mehlan (10 patents)Josef GressJosef Gress (6 patents)Rudolf LeichsRudolf Leichs (2 patents)Frank DorrbeckFrank Dorrbeck (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sielaff Gmbh & Co. (2 from 5 patents)

2. Sielaff Gmbh & Co. Automatenbau Herrieden (1 from 6 patents)


3 patents:

1. 4437557 - Coin collection for vending machines

2. 4323147 - Coin-operated dispensing device reflecting the selling price of items to

3. 4235351 - Merchandise dispensing device for a vending machine

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as of
12/19/2025
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