Average Co-Inventor Count = 3.95
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. Sumitomo Chemical Company, Limited (5 from 6,893 patents)
2. Duskin Franchise Kabushiki Kaisha (4 from 15 patents)
3. Duskin Franchise Kabushiki Kaisha (duskin Franchise Co., Ltd.) (2 from 2 patents)
4. Duskin Franchise Co. Ltd. (1 from 15 patents)
5. Duskin Franchise Kabushiki (1 from 1 patent)
13 patents:
1. 5424455 - Heterocyclic compounds for making red disperse dyes
2. 5223616 - Heterocyclic disperse dye compound, their production and their use for
3. 5077416 - Benzodifuranone compounds useful for dyeing or printing hydrophobic
4. 5075429 - Monoazo-disperse dye compounds their production and their use
5. 4977261 - Anthraquinone compound
6. 4479280 - Mat base plate
7. D272877 - Door mat base plate or similar article
8. 4415620 - Mat base plate
9. 4361925 - Mat-base assembly
10. D265705 - Door mat base plate or similar article
11. D265704 - Door mat base plate or similar article
12. D263541 - Door mat base plate or similar article
13. D262936 - Mop