Average Co-Inventor Count = 1.26
ph-index = 8
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. Esselte Pendaflex Corporation (8 from 118 patents)
2. Oxford Pendaflex Corporation (2 from 3 patents)
3. Other (1 from 832,761 patents)
11 patents:
1. D297688 - Stackable drawer file
2. D294665 - Storage rack
3. 4728159 - Stackable file storage unit
4. 4714165 - Storage rack
5. D289181 - Rack for hanging folders
6. 4601398 - Frame for hanging files
7. 4568052 - Apparatus for supporting an object in a desired position
8. 4505388 - Expandable portable file
9. 4325595 - Card file
10. 4267656 - Copy holder
11. 4222190 - Device for holding flip cards