Average Co-Inventor Count = 2.00
ph-index = 2
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. Henderson's Industries Pty Ltd. (3 from 22 patents)
2. Henderson's Federal Spring Works Pty. Ltd. (1 from 2 patents)
4 patents:
1. 5456777 - Method of making vandal resistant seat
2. 5275769 - Method of forming a vandal-resistant seat
3. 5259896 - Method of making vandal resistant seat
4. 4828908 - Vandal resistant seat