Average Co-Inventor Count = 2.67
ph-index = 4
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.
Company Filing History:
1. Koninklijke Philips Corporation N.V. (3 from 21,384 patents)
2. Signify Holding B.v. (1 from 1,805 patents)
4 patents:
1. D852988 - LED lamp
2. D577133 - Twisted lamp
3. D549361 - Energy saving lamp
4. D549362 - Twisted lamp