Mumbai-based Glenmark has lately received an Indian Patent No. 201170 for novel heterocyclic compounds as Phosphodiesterase type IV (PDV IV) inhibitors of the Formula I against the mail-box Application No. 363/MUM/2003 filed April 11, 2003 with the Mumbai Patent Office. Possibly this could be Glenmark’s first drug compound patent to be granted patent protection in India, which already has been granted US Patent No. 7,223,789. According to the ‘789 patent disclosure, the compounds are suggested to have reach through indication over the treatment of variety of allergic and inflammatory diseases including asthma, chronic bronchitis, atopic dermatitis, urticaria, allergic rhinitis, allergic conjunctivitis, vernal conjuctivitis, eosinophilic granuloma, psoriasis, rheumatoid arthritis, septic shock, ulcerative colitis, Crohn's disease, reperfusion injury of the myocardium and reperfusion injury of the brain, chronic glomerulonephritis, endotoxic shock and adult respiratory distress syndrome, particularly for the treatment of asthma or chronic obstructive pulmonary disease (COPD).