Average Co-Inventor Count = 3.57
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. Hand Held Products, Inc. (2 from 1,294 patents)
2. Other (1 from 832,718 patents)
3. Welch Allyn Data Collection, Inc. (1 from 24 patents)
4. Oberthur Gaming Technologies Inc. (1 from 12 patents)
5 patents:
1. 7712741 - Double sided scratch-off lottery tickets and methods of manufacturing the same
2. 7303134 - Lottery game tickets and methods for making same
3. 6752319 - Lottery game tickets and methods for making same
4. 6419157 - Methods for processing security documents
5. 6186404 - Security document voiding system