Average Co-Inventor Count = 1.67
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. Other (3 from 832,912 patents)
2. Marvin Glass & Associates (1 from 422 patents)
3. Eugene H. Smith and Associates (1 from 1 patent)
5 patents:
1. 5158158 - Vertically disposed wheel chock for tandem wheels
2. 5032098 - Illuminated flying disk
3. 4973087 - Special effect postcard with integral viewer
4. 4681405 - Method and lens for producing a wide angle image
5. 4576585 - Toy figures with vacuum changeable features