Chalcogen Bonded Directly To Diazine Ring Carbon Patents (Class 544/298)
- Additional hetero ring which is unsaturated (Class 544/300)
- Nitrogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/301)
- Additional chalcogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/302)
- Halogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/303)
- Alicyclic ring attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/304)
- Phenyl bonded directly at 5-position (Class 544/305)
- Acyclic ethylenic or acetylenic unsaturation containing (Class 544/306)
- Plural alkyl groups bonded directly at 5-position (Class 544/307)
- Additional hetero ring which is unsaturated (Class 544/310)
- Nitrogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/311)
- Halogen attached directly to the diazine ring by nonionic bonding (Class 544/313)
- Additional chalcogen attached directly or indirectly to the diazine ring by nonionic bonding (Class 544/314)