Growing community of inventors

Jena, Germany

Johannes Kirchhof

Average Co-Inventor Count = 5.83

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 = 4

Johannes KirchhofStephan Grimm (2 patents)Johannes KirchhofMartin Trommer (1 patent)Johannes KirchhofThomas Kayser (1 patent)Johannes KirchhofAndreas Langner (1 patent)Johannes KirchhofGerhard Schoetz (1 patent)Johannes KirchhofMario Such (1 patent)Johannes KirchhofVolker Reichel (1 patent)Johannes KirchhofMalte Schwerin (1 patent)Johannes KirchhofFrank Froehlich (1 patent)Johannes KirchhofJohannes Kirchhof (2 patents)Stephan GrimmStephan Grimm (4 patents)Martin TrommerMartin Trommer (27 patents)Thomas KayserThomas Kayser (16 patents)Andreas LangnerAndreas Langner (14 patents)Gerhard SchoetzGerhard Schoetz (7 patents)Mario SuchMario Such (5 patents)Volker ReichelVolker Reichel (3 patents)Malte SchwerinMalte Schwerin (2 patents)Frank FroehlichFrank Froehlich (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Heraeus Quarzglas Gmbh & Co Kg (2 from 229 patents)

2. Institut Fur Photonische Technologien (1 from 1 patent)

3. Institut Für Photonische Technologien E.v. (0 patent)


2 patents:

1. 9416044 - Hydrogen-supported fluorination of soot bodies

2. 8557171 - Method for producing doped quartz glass

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12/9/2025
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