Growing community of inventors

Eindhoven, Netherlands

Henricus H Roelofs

Average Co-Inventor Count = 2.86

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 = 25

Henricus H RoelofsJoris A Nieuwendijk (1 patent)Henricus H RoelofsJohannes W Bax (1 patent)Henricus H RoelofsMartinus P Van Den Thillart (1 patent)Henricus H RoelofsCornelis J Oepkes (1 patent)Henricus H RoelofsJacobus M Verhoeven (1 patent)Henricus H RoelofsHenricus H Roelofs (2 patents)Joris A NieuwendijkJoris A Nieuwendijk (23 patents)Johannes W BaxJohannes W Bax (6 patents)Martinus P Van Den ThillartMartinus P Van Den Thillart (3 patents)Cornelis J OepkesCornelis J Oepkes (1 patent)Jacobus M VerhoevenJacobus M Verhoeven (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. U.S. Philips Corporation (2 from 14,087 patents)


2 patents:

1. 5926365 - Device for the exchange of information with an electronic memory card,

2. 5471018 - Audio or video apparatus with a built-in loudspeaker

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as of
12/12/2025
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