Growing community of inventors

Saarbrücken, Germany

Andreas Freitag

Average Co-Inventor Count = 2.90

ph-index = 5

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 = 138

Andreas FreitagHolger Wittmer (7 patents)Andreas FreitagMarkus Welter (2 patents)Andreas FreitagMichael Haase (2 patents)Andreas FreitagThomas Gabelmann (1 patent)Andreas FreitagBerthold Simon (1 patent)Andreas FreitagZiad Abo-Hasna (1 patent)Andreas FreitagMichael Biwer (1 patent)Andreas FreitagAndreas Freitag (7 patents)Holger WittmerHolger Wittmer (8 patents)Markus WelterMarkus Welter (10 patents)Michael HaaseMichael Haase (2 patents)Thomas GabelmannThomas Gabelmann (6 patents)Berthold SimonBerthold Simon (5 patents)Ziad Abo-HasnaZiad Abo-Hasna (5 patents)Michael BiwerMichael Biwer (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sap Ag (7 from 3,607 patents)


7 patents:

1. 8046273 - System and method for purchase order creation, procurement, and controlling

2. 7983962 - Method and system for purchase order data entry

3. 7853491 - Purchase orders based on purchasing list, capacity plans, assortment plans, and area spread assortment plans

4. 7813961 - System and method for planning, allocation, and purchasing

5. 7805335 - Purchase list having status indicators

6. 7693749 - System and computer product for managing purchase orders

7. 7343315 - System and method of efficient scheduling and processing of purchase orders

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as of
12/26/2025
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