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Beckenried, Switzerland

Theophil Ryser

Average Co-Inventor Count = 1.00

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 = 67

Theophil RyserTheophil Ryser (4 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Amc International Alfa Metalcraft Corporation Ag (3 from 24 patents)

2. Amc International Alfa Metalcraft Corporation (1 from 3 patents)


4 patents:

1. D305493 - Pressure cooker cover or the like

2. D290575 - Cover for a container

3. D272974 - Handle for covers of cooking utensils

4. D261349 - Pot cover handle

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as of
12/19/2025
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