Growing community of inventors

Bielefeld, Germany

Rolf Sief

Average Co-Inventor Count = 3.60

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 = 11

Rolf SiefDirk Riepe (2 patents)Rolf SiefJan Boris Rudkowski (2 patents)Rolf SiefJoachim Fischer (2 patents)Rolf SiefFriedhelm Krüger (1 patent)Rolf SiefMichaela Hunze (1 patent)Rolf SiefRolf Sief (3 patents)Dirk RiepeDirk Riepe (6 patents)Jan Boris RudkowskiJan Boris Rudkowski (6 patents)Joachim FischerJoachim Fischer (3 patents)Friedhelm KrügerFriedhelm Krüger (9 patents)Michaela HunzeMichaela Hunze (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Wedeco Ag Water Technology (2 from 12 patents)

2. Wedeco Ag (1 from 6 patents)

3. Xylem IP Holdings, LLC (59 patents)


3 patents:

1. 7592607 - Device for treating a flowing fluid

2. 7061173 - Amalgam-doped low mercury low-pressure UV irradiator

3. 7049738 - Amalgam low pressure mercury UV lamp

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as of
12/15/2025
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