Last Updated: August 13, 2026

Bulgaria Drug Patents

Drug Patents in Bulgaria and US Equivalents

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.

Glossary

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Patent Number	Estimated Expiration	Equivalent US Patent	US Expiry Date	Generic Name	US Applicant	US Tradename
29724	⤷ Start Trial	4092315	1995-05-30	prazosin hydrochloride	Pfizer	MINIPRESS
19136	⤷ Start Trial	3830827	1991-08-20	carbidopa; levodopa	Organon	SINEMET
23001	⤷ Start Trial	3987200	1993-10-19	dobutamine hydrochloride	Lilly	DOBUTREX
>Patent Number	>Estimated Expiration	>Equivalent US Patent	>US Expiry Date	>Generic Name	>US Applicant	>US Tradename

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.