Average Co-Inventor Count = 3.00
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.
Company Filing History:
1. Other (1 from 832,912 patents)
2. Qlt Phototherapeutics, Inc. (1 from 15 patents)
3. Thompson Cancer Survival Center (1 from 1 patent)
4. Qlt Phototherapeuticcs Inc. (1 from 1 patent)
2 patents:
1. 6146409 - Therapeutic methods and devices for irradiating columnar environments
2. 6013053 - Balloon catheter for photodynamic therapy