Here is IP Think Tank’s weekly selection of top Pharma & Biotech intellectual property news breaking in the blogosphere and internet.

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Tarceva (Erlotinib) – India: Delhi High Court Appellate Bench holds in favour of Cipla against Roche in Tarceva patent litigation; Roche fined for ‘material suppression’ (Spicy IP) (PatLit) (Patent Circle) (Spicy IP) (Patent Circle) (Patent Circle) (GenericsWeb)

Lovenox (Enoxaparin) – US: Supreme Court denies certiorari petition in Aventis Pharma v Amphastar and Teva concerning inequitable conduct (Orange Book Blog) (GenericsWeb) (IP Watchdog)

The Swine Flu outbreak: Cipla on a patent roll (Spicy IP)

Brazil: Biodiversity patent application easier in Brazil (RelatIP)

Mexico: Counterfeit vaccine warning as Swine Flu hits Mexico (IP tango)

US: FDA petition response cements Orange Book preface therapeutic equivalence clarification (FDA Law Blog)

US: So, what happens when the US decides it no longer wishes to subsidise the world? (IAM)

US: Johnson & Johnson – 5 year exclusivity period would kill incentives to innovate (Patent Docs)

US: CHI CEO on patent reform and follow-on biologics legislation (Patent Docs)

US: BIO urges Congress on patent reform: First, do no harm (Patent Baristas)

US: Pharmaceutical advertising: How to use a domain name to circumvent application of law (Domain Name / Nom De Domaine!)

Alimta (Pemetrexed) – US: Eli Lilly files patent infringement suit over Barr’s ANDA to manufacture generic Alimta (Patent Docs)

Arthrotech (Diclofenac/Misoprostol) – US: Pfizer files patent infringement suit against Teva over generic Arthrotech ANDA (Patent Docs)

Enablex (Darifenacin hydrobromide) – US: Watson files ANDA to market generic Enablex prior to expiration of Novartis’ patent (GenericsWeb)

Flanax (Naproxen) – US: TTAB precedential no 17: TTAB dismisses Bayer FLANAX cancellation claims – no famous marks exception in US law: Bayer Consumer Care AG v Belmora LLC (TTABlog)

Hectorol (Doxercalciferol) – US: Bone Care International files patent infringement suit against Eagle Pharmaceuticals over generic Hectorol ANDA (Patent Docs)

Hepsera (Adefovir dipivoxil) – India: Pregrant opposition – Delhi Patent Office rejects Gilead’s patent application covering crystalline adefovir dipivoxil (Patent Circle)

Lovaza (Omega-3-acid ethyl esters) – US: Pronova BioPharma files patent infringement suit in response to Teva’s ANDA to manufacture generic Lovaza (Patent Docs) (GenericsWeb)

Lovenox (Enoxaparin) – US: Supreme Court denies certiorari petition in Aventis Pharma v Amphastar and Teva concerning inequitable conduct (Orange Book Blog) (GenericsWeb) (IP Watchdog)

Lunesta (Eszopiclone) – US: Sepracor files patent infringement suit against Alphapharm over generic Lunesta ANDA (Patent Docs)

Mucinex / Mucinex DM (Guaifenesin / Guaifenesin/Dextromethorphan) – US: Reckitt Benckiser files patent infringement suit against Watson over generic Mucinex and Mucinex DM ANDA (Patent Docs)

Pawsitive ID kit – OptiGen asserts four patents against defendants’ Pawsitive ID kit for testing Progressive Rod-Cone Disease in dogs: OptiGen, LLC v Texas A&M University System et al (Patent Docs)

Perflubutane – EU: Community Marketing Authorisation waiver based on ‘even SPC won’t be enough’ argument is rejected: Nycomed Danmark ApS v European Medicines Agency (The SPC Blog)

Plavix (Clopidogrel) – EU: Teva withdraws bid for generic Plavix in Europe (GenericsWeb)

Tamiflu (Oseltamivir) and Relenza (Zanamivir) – Korea: Ministry of Health and Welfare reportedly says it will grant compulsory license on Tamiflu or Relenza if supply runs short of demand (Korea IP Law Blog)

Tarceva (Erlotinib) – India: Delhi High Court Appellate Bench holds in favour of Cipla against Roche in Tarceva patent litigation; Roche fined for ‘material suppression’ (Spicy IP) (PatLit) (Patent Circle) (Spicy IP) (Patent Circle) (Patent Circle) (GenericsWeb)

Viagra (Sildenafil) – Canada: Federal Court of Appeal finds Viagra worth a try, but not obvious: Apotex v Pfizer Canada (International Law Office)