Average Co-Inventor Count = 1.55
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. Philip Morris USA Inc. (3 from 731 patents)
2. Philip Morris Inc. (1 from 759 patents)
4 patents:
1. 7690385 - Opposed seam electrically heated cigarette smoking system
2. 7163015 - Opposed seam electrically heated cigarette smoking system
3. D495871 - Belt clip accessory for electrically heated cigarette smoking system
4. 5305392 - High speed, high resolution web inspection system