Growing community of inventors

Los Gatos, CA, United States of America

Heinz U Roggenkemper

Average Co-Inventor Count = 5.09

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 = 23

Heinz U RoggenkemperHartmut K Vogler (2 patents)Heinz U RoggenkemperRamshankar Venkatasubramanian (2 patents)Heinz U RoggenkemperHila Schlank (2 patents)Heinz U RoggenkemperEckhard Farrenkopf (1 patent)Heinz U RoggenkemperSuresh Babu (1 patent)Heinz U RoggenkemperHeinz Kagermann (1 patent)Heinz U RoggenkemperHeinz U Roggenkemper (2 patents)Hartmut K VoglerHartmut K Vogler (23 patents)Ramshankar VenkatasubramanianRamshankar Venkatasubramanian (8 patents)Hila SchlankHila Schlank (2 patents)Eckhard FarrenkopfEckhard Farrenkopf (9 patents)Suresh BabuSuresh Babu (6 patents)Heinz KagermannHeinz Kagermann (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sap Se (1 from 5,892 patents)

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


2 patents:

1. 8924272 - System and method for management and verification of invoices

2. 7840455 - System and method of detecting fraudulent or erroneous invoices

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as of
12/6/2025
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