Average Co-Inventor Count = 1.58
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. Ocg Microelectronic Materials, Inc. (2 from 71 patents)
2. Olin Hunt Specialty Products Inc. (2 from 45 patents)
3. Philip A. Hunt Chemical Corporation (1 from 21 patents)
5 patents:
1. 5151219 - Use of particular mixtures of ethyl lactate and methyl ethyl ketone to
2. 5063138 - Positive-working photoresist process employing a selected mixture of
3. 4965167 - Positive-working photoresist employing a selected mixture of ethyl
4. 4886728 - Use of particular mixtures of ethyl lactate and methyl ethyl ketone to
5. 4565776 - Photographic developer composition