Average Co-Inventor Count = 2.93
ph-index = 3
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. (2 from 21,402 patents)
2. U.S. Philips Corporation (2 from 14,087 patents)
4 patents:
1. 7097343 - Lamp and headlight for simple mounting
2. 6798138 - Halogen incandescent lamp for motor vehicles
3. 5036439 - Car headlight lamp and method of manufacturing same
4. 4119877 - Electric lamp having a cap plate