Drugmaker Suven Life Sciences Ltd secured four product patents from Eurasia, Europe, Israel and Macau for its New Chemical Entities. These patents, valid through 2030, cover selective 5-HT compounds being developed to treat cognitive disorders like Alzheimer's, ADHD, Huntington's and Parkinson's diseases. Suven CEO said they are pleased to receive these patents for molecules in the CNS area with high unmet medical need and market potential globally. Oil prices extended their decline on worries over global oversupply and slowing demand growth. Asian markets opened lower on Monday following a slump in US stocks on Friday due to concerns over declining oil prices and China's yuan. Indian shares may open weak, tracking Asian peers and ahead of