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Patents
Organic Compounds -- Part Of The Class 532-570 Series Patents
Organic Compounds (class 532, Subclass 1)
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Chalcogen (i.e., Oxygen, Sulfur, Selenium Or Tellurium) Or Nitrogen As The Only Ring Hetero Atoms Patents
Hetero Ring Is Four-membered Containing Nitrogen And Having Chalcogen Double Bonded Directly To A Ring Carbon Which Is Adjacent To The Ring Nitrogen Patents
Polycyclo Ring System Containing The Hetero Ring As One Of The Cyclos Patents
The Ring Nitrogen Is Shared By A Five-membered Ring Patents
The Five-membered Ring Contains An Additional Hetero Atom Patents
1-thia-4-aza-bicyclo(3.2.0)hep-tane (including Unsaturated; E.g., Penam, Etc.) Patents
Having -c(=x)-, Wherein X Is Chalcogen, Bonded Directly At The 3-position Of The Bicyclo Ring System Patents
Nitrogen Bonded Directly At The 6-position Of The Bicyclo Ring System Patents
Having -c(=x)-, Wherein X Is Chalcogen, Single Bonded Directly To The Nitrogen (e.g., Penicillin F, Etc.) Patents
Benzene Or Hetero Ring In 6-position Substituent Patents
Unsubstituted Hydrocarbyl Chain Between The Ring And The -c(=x)- Group Patents
Amine Addition Salts Of 3-position -cooh Group Patents
Plural Nitrogens In The Cation (i.e., Amine Moiety) Patents (Class 540/345)
Plural Nitrogens In The Cation (i.e., Amine Moiety) Patents (Class 540/345)
There are no patents to show for this class.