Last Updated: November 8, 2026

Details for Patent: 3,786,160

Name: Drug Patent Intelligence for US Patent 3786160
Creator: DrugPatentWatch
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Summary for Patent: 3,786,160

Title:	Use of 2-hydroxymethyl-3-hydroxy-6-(1-hydroxy-2-aminoethyl)-pyridines as bronchodilators
Abstract:	2-HYDROXYMETHYL - 3 - HYDROXY - 6 - (1-HYDROXY-2AMINOETHYL)PYRIDINES AND SALTS THEREOF, A NOVEL CLASS OF B-ADRENERGIC AGONIST BRONCHODILATORS IN MAMMALS, AND 2HYDROXYMETHYL - 3 - BENZYLOXY - 6 - PYRIDINECARBOXALDEHYDE, A VALUABLE INTERMEDIATE IN THE PREATION OF THE SUBJECT COMPOUNDS.
Inventor(s):	W Barth
Assignee:	Pfizer Corp Belgium , Pfizer Inc
Application Number:	US00256756A
Patent Claim Types: see list of patent claims

Drugs Protected by US Patent 3,786,160

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

International Family Members for US Patent 3,786,160

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	195962	⤷ Start Trial
Argentina	196343	⤷ Start Trial
Austria	315842	⤷ Start Trial
Belgium	778771	⤷ Start Trial
Canada	978962	⤷ Start Trial
Switzerland	541560	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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