Average Co-Inventor Count = 5.56
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. Hallmark Cards, Inc. (5 from 233 patents)
5 patents:
1. 7611261 - Decorating with a lighted device
2. 7341360 - Decorating with a lighted device
3. D549130 - Plush advent tree
4. 7211305 - Holiday countdown interactive display
5. D528037 - Plush advent tree