Average Co-Inventor Count = 6.56
ph-index = 7
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. Hand Held Products, Inc. (3 from 1,294 patents)
2. Welch Allyn Data Collection, Inc. (3 from 24 patents)
3. Other (1 from 832,718 patents)
7 patents:
1. 7303134 - Lottery game tickets and methods for making same
2. 6752319 - Lottery game tickets and methods for making same
3. 6419157 - Methods for processing security documents
4. 6405929 - Material detection systems for security documents
5. 6304660 - Apparatuses for processing security documents
6. 6186404 - Security document voiding system
7. 6155491 - Lottery game ticket processing apparatus