Average Co-Inventor Count = 1.75
ph-index = 9
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. Britax Excelsior Limited (6 from 23 patents)
2. Britax Child Safety Inc. (2 from 53 patents)
3. Britax Romer Kindersicherheit Gmbh (2 from 51 patents)
4. Britax Wingard Limited (1 from 32 patents)
5. Romer-britax Autogurte Gmbh (1 from 3 patents)
6. Britax (windgard) Limited (1 from 1 patent)
10 patents:
1. 6382722 - Child safety seat
2. 6209957 - Child safety seat
3. 6206470 - Child safety seat
4. 5611596 - Child safety seat
5. 5567007 - Infant safety seat
6. 5487588 - Child safety seat
7. 4854639 - Child's safety seat
8. 4790601 - Child's seat for a motor vehicle
9. 4256273 - Safety belt retractors
10. 4197619 - Tongue and buckle fastener for a safety belt harness