Growing community of inventors

Eindhoven, Netherlands

Petrus A Lemmens

Average Co-Inventor Count = 6.00

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 = 18

Petrus A Lemmens ↔ Cornelis J Potters (1 patent)Petrus A Lemmens ↔ Johannes H Angenent (1 patent)Petrus A Lemmens ↔ Nicodemus Hattu (1 patent)Petrus A Lemmens ↔ Johan C Wijn (1 patent)Petrus A Lemmens ↔ Petrus Heller (1 patent)Petrus A LemmensPetrus A Lemmens (1 patent)Cornelis J PottersCornelis J Potters (7 patents)Johannes H AngenentJohannes H Angenent (4 patents)Nicodemus HattuNicodemus Hattu (4 patents)Johan C WijnJohan C Wijn (2 patents)Petrus HellerPetrus Heller (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 4895585 - Method of manufacturing lens elements

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as of
1/8/2026
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