Growing community of inventors

Duesseldorf, Germany

Marc Speitkamp

Average Co-Inventor Count = 4.20

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 = 2

Marc SpeitkampThomas Markert (2 patents)Marc SpeitkampRalph Nemitz (1 patent)Marc SpeitkampVolker Porrmann (1 patent)Marc SpeitkampTheo Ten Pierik (1 patent)Marc SpeitkampFrank Rittler (1 patent)Marc SpeitkampUte Lemke (1 patent)Marc SpeitkampElke Veit (1 patent)Marc SpeitkampMarc Speitkamp (2 patents)Thomas MarkertThomas Markert (26 patents)Ralph NemitzRalph Nemitz (23 patents)Volker PorrmannVolker Porrmann (7 patents)Theo Ten PierikTheo Ten Pierik (7 patents)Frank RittlerFrank Rittler (3 patents)Ute LemkeUte Lemke (2 patents)Elke VeitElke Veit (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (1 from 3,600 patents)

2. Cognis Deutschland Gmbh & Co. Kg (1 from 150 patents)


2 patents:

1. 7259135 - Use of hexenal derivatives as perfumes

2. 6632787 - Carbonyl compounds, methods of making the same, and their use as fragrances and fragrance-enhancing additives

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idiyas.com
as of
12/6/2025
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