Average Co-Inventor Count = 10.00
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. Toyama Chemical Co., Ltd. (6 from 159 patents)
6 patents:
1. 4477666 - 1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts
2. 4477664 - Novel 1-(4-piperidiniobenzyl)-2,3-dioxopiperazine derivatives or acid
3. 4460774 - 1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts
4. 4459407 - 1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives and salts thereof
5. 4448963 - 4-[4-(Thiazolyl-amino)benzyl]-2,3-dioxopiperazine derivatives, acid
6. 4436921 - 1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts