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BOMBAY HIGH COURT
Vimadalal, J.
Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius and Bruning a Corporation etc v. Unichem Laboratories
| Table of Content |
|---|
| 1. overview of patent infringement and parties involved. (Para 1) |
| 2. defence arguments against patent validity and infringement. (Para 2) |
| 3. issues framed for determination regarding infringement. (Para 3 , 4) |
| 4. legal standards for delay and acquiescence in patent cases. (Para 5 , 6) |
| 5. court's analysis of patent claims and their constructions. (Para 7 , 8) |
| 6. expert testimony and technical glossary for decision. (Para 9 , 10) |
| 7. determination of claims allegedly infringed. (Para 11) |
| 8. analysis of patent validity challenges. (Para 12 , 13 , 14 , 15) |
| 9. precedent and implications regarding patent utility. (Para 16 , 17 , 18 , 19 , 20) |
| 10. final judgment granting relief to the plaintiffs. (Para 21) |
1. This is a suit for infringement of patent under S.29 of the Indian Patents and Designs Act, 1911 , filed by the plaintiffs who are the legal owners and proprietors of Indian Patent No. 58716 in respect of the manufacture of new sulphonylureas, salts of those compounds and of anti - diabetic preparations containing such compounds. The application for the said patent was made by the plaintiffs on 23rd October 1956 and was accepted on 7th November 1957, but the same took effect fr
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