Average Co-Inventor Count = 1.76
ph-index = 5
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. (5 from 21,384 patents)
2. Ric Investments, Inc. (297 patents)
5 patents:
1. D687539 - Nasal pillows for a nasal mask assembly
2. D686313 - Nasal mask assembly
3. D686314 - Support frame for a nasal mask assembly
4. D659822 - Cushion in face mask assembly
5. D645558 - Frame in face mask assembly