Average Co-Inventor Count = 3.33
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. Hallmark Cards, Inc. (4 from 233 patents)
4 patents:
1. 5513116 - Computer controlled machine for vending personalized products or the like
2. 5036472 - Computer controlled machine for vending personalized products or the like
3. 4869767 - Process for placing single or multiple patterned layers of conductive
4. 3995958 - Automatic densitometer and method of color control in multi-color