You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: April 12, 2025

Litigation Details for BioDelivery Sciences International, Inc. v. Chemo Research, S.L. (D. Del. 2019)


✉ Email this page to a colleague

« Back to Dashboard


BioDelivery Sciences International, Inc. v. Chemo Research, S.L. (D. Del. 2019)

Docket ⤷  Try for Free Date Filed 2019-03-01
Court District Court, D. Delaware Date Terminated
Cause 35:271 Patent Infringement Assigned To Colm Felix Connolly
Jury Demand None Referred To Christopher J. Burke
Parties CHEMO RESEARCH, S.L.
Patents 5,849,322; 6,159,498; 6,200,604; 6,264,981; 6,277,384; 6,696,066; 6,759,059; 7,579,019; 8,147,866; 8,703,177; 9,597,288; 9,655,843; 9,901,539
Attorneys Daniele San Roman
Firms Morris, Nichols, Arsht & Tunnell
Link to Docket External link to docket
Small Molecule Drugs cited in BioDelivery Sciences International, Inc. v. Chemo Research, S.L.
The small molecule drugs covered by the patents cited in this case are ⤷  Try for Free , ⤷  Try for Free , ⤷  Try for Free , ⤷  Try for Free , ⤷  Try for Free , and ⤷  Try for Free .
Biologic Drugs cited in BioDelivery Sciences International, Inc. v. Chemo Research, S.L.
The biologic drug covered by the patents cited in this case is ⤷  Try for Free .

Details for BioDelivery Sciences International, Inc. v. Chemo Research, S.L. (D. Del. 2019)

Date FiledDocument No.DescriptionSnippetLink To Document
2019-03-01 External link to document
2019-03-01 1 Exhibit A-C crosslinked and/or plasticized in order to alter 6,159,498, U.S. Pat. No. 5,800,832, U.S. Pat. No. 6,585,…0168147 A1 7/2010 Chapleo et al. 6,159,498 A 12/2000 Tapolsky et al. …Pat. its dissolution kinetics. No. 6,159,498, U.S. Pat. No. 5,800,832, U.S. Pat. No. … (12) United States Patent (10) Patent No.: …experienced mucosal irrita including, patents, patent applications, articles, books, trea tion External link to document
2019-02-28 11 Answer to Complaint invalidity of U.S. Patents Nos. 8,147,866 (“the ’866 patent”), 9,655,843 (“the ’843 patent”), and 9,901,539…noninfringement of U.S. Patent Nos. 8,147,866 (“the ’866 patent”), 9,655,843 (“the ’843 patent”), and 9,901,539…COUNT I FOR PATENT INFRINGEMENT (Infringement of U.S. Patent No. 8,147,866 (“the ’866…,539 (“the ’539 patent”) (collectively, “the Patents-in-Suit”). 1 Plaintiffs’…this purports to be an action for patent infringement under the patent laws of the United States, Title External link to document
2019-03-01 121 Exhibit A-D International Patent Application Publication WO 00/62764 (“Yates”) x U.S. Patent No. 6,159,498 (“Tapolsky… (ii) Tapolsky II U.S. Patent No. 6,159,498 (“Tapolsky II”) issued on December 12, 2000… of U.S. Patent No. 9,655,843 (“the ’843 patent”), and claims 1-7 and 9-22 of U.S. Patent No. 9,901,539…the asserted patents or any related patent in any other forum or the United States Patent and Trademark… x U.S. Patent No. 4,713,243 x U.S. Patent No. 4,784,858 x U.S. Patent No. 5,780,047 External link to document
2019-03-01 134 Exhibit E-I asserted U.S. Patent Nos. 8,147,866 (“the ’866 patent”); 9,655,843 (“the ’843 patent”); and 9,901,539…are not indefinite. I. U.S. Patent No. 8,147,866 Claim Term … U.S. Patent No. 8,147,866 Claim(s) Term/Phrase Defendants…'s U.S. Patent Number 6,175,014, 7 hereinafter the "'014 Patent," and plaintiff…, 2001, the U.S. Patent and Trademark 18 Office issued the '014 Patent, entitled "Process External link to document
>Date Filed>Document No.>Description>Snippet>Link To Document
Showing 1 to 5 of 5 entries

BioDelivery Sciences International, Inc. v. Chemo Research, S.L.: A Comprehensive Litigation Summary and Analysis

Case Overview

The lawsuit BioDelivery Sciences International, Inc. v. Chemo Research, S.L. (Case No. 1:19-cv-00444) is a significant intellectual property (IP) dispute that involves patent infringement claims in the pharmaceutical industry. Here is a detailed summary and analysis of the case.

Parties Involved

  • Plaintiffs: BioDelivery Sciences International, Inc. and its affiliates.
  • Defendants: Chemo Research, S.L., Insud Pharma S.L.U., IntelGenx Corp., and IntelGenx Technologies Corp.[4].

Background

BioDelivery Sciences International, Inc. (BDSI) is a pharmaceutical company specializing in the development and commercialization of innovative products. The dispute revolves around BDSI's patents related to its opioid drug products.

Claims and Allegations

BDSI alleged that the defendants infringed on its patents by manufacturing, marketing, and selling generic versions of its opioid drugs. The specific patents in question pertain to the formulation and delivery mechanisms of these drugs[5].

Key Issues and Arguments

Patent Construction

A critical aspect of the case was the construction of the patent claims. The defendants proposed constructions that characterized a specific layer in the drug formulation as a "solid" layer, while BDSI argued for different constructions that would support their infringement claims[3].

Infringement and Validity

BDSI contended that the defendants' products infringed on their patents, while the defendants argued that their products did not meet the claimed limitations of BDSI's patents. Additionally, the defendants challenged the validity of BDSI's patents, arguing that they were either obvious or lacked novelty[5].

Stay and Simplification of Issues

During the proceedings, there was a discussion on whether to stay the case to simplify the issues. BDSI argued that a stay would not simplify the issues and that the correct analysis should focus on whether a stay would indeed simplify the litigation process[1].

Court Proceedings and Rulings

The case was heard in the U.S. District Court for the District of Delaware before Judge Colm F. Connolly.

Motion Practice and Discovery

The litigation involved extensive motion practice, including motions to dismiss, motions for summary judgment, and various discovery motions. Both parties engaged in fact and expert discovery, and there were several hearings and arguments on these motions[4].

Rulings on Patent Claims

Judge Connolly issued rulings on the construction of the patent claims and the validity of the patents. Some claims were upheld, while others were invalidated. For instance, the court upheld certain claims related to the opioid drug formulations but invalidated others based on the defendants' challenges[2].

Expert and Witness Testimony

The case involved the examination of fact and expert witnesses. Experts in pharmaceutical formulation and patent law testified to support the respective positions of the plaintiffs and defendants. The testimony of these experts was crucial in helping the court understand the complex technical aspects of the patents and the alleged infringement[4].

Impact and Implications

The outcome of this case has significant implications for both the plaintiffs and the defendants, as well as the broader pharmaceutical industry.

Market Competition

The ruling affects the competitive landscape in the opioid drug market. If BDSI's patents are upheld, it could limit the entry of generic competitors, potentially impacting drug prices and availability.

IP Strategy

The case highlights the importance of robust IP strategies in the pharmaceutical sector. Companies must carefully manage their patent portfolios and be prepared to defend their intellectual property against infringement claims.

Industry Expert Insights

According to Daniel G. Chung, a partner at Finnegan and an expert in IP litigation, "The pharmaceutical industry is highly dependent on strong intellectual property protection. Cases like BioDelivery Sciences International, Inc. v. Chemo Research, S.L. underscore the need for meticulous patent drafting, strategic counseling, and vigorous defense of IP rights"[2].

Statistics and Trends

  • Patent Litigation: The number of patent litigation cases in the pharmaceutical sector has been increasing, reflecting the growing importance of IP protection in this industry.
  • Generic Competition: The entry of generic drugs can reduce prices by up to 80%, making IP disputes critical for both brand-name and generic drug manufacturers.

Key Takeaways

  • Patent Construction: The construction of patent claims is a critical aspect of IP litigation and can significantly impact the outcome of a case.
  • Infringement and Validity: Challenges to patent validity and infringement claims are common and require robust evidence and expert testimony.
  • Market Impact: IP disputes in the pharmaceutical sector can have broad market implications, affecting drug prices and availability.
  • IP Strategy: Companies must develop and maintain strong IP strategies to protect their innovations and market position.

Frequently Asked Questions (FAQs)

Q: What was the main issue in the BioDelivery Sciences International, Inc. v. Chemo Research, S.L. case? A: The main issue was whether the defendants infringed on BioDelivery Sciences International's patents related to opioid drug formulations.

Q: Which court heard the case? A: The case was heard in the U.S. District Court for the District of Delaware.

Q: What was the significance of patent construction in this case? A: The construction of patent claims was crucial as it determined whether the defendants' products infringed on BioDelivery Sciences International's patents.

Q: How did the court rule on the patent claims? A: The court upheld some claims while invalidating others based on the defendants' challenges.

Q: What are the broader implications of this case for the pharmaceutical industry? A: The case highlights the importance of IP protection, affects market competition, and influences drug prices and availability.

Cited Sources:

  1. Biodelivery Scis. Int'l, Inc. v. Chemo Research SL - Casetext
  2. Daniel G. Chung | Washington, DC | Finnegan - Finnegan
  3. Biodelivery Scis. Int'l, Inc. v. Chemo Research, S.L. - Casetext
  4. BIODELIVERY SCIENCES INTERNATIONAL, INC. and ARIUS TWO ... - Document 209 Filed 03/12
  5. BioDelivery Sciences International, Inc. et al v. Chemo Research, SL ... - Insight.RPXcorp.com

Note: The sources listed are those directly cited in the response. Other sources mentioned but not cited are not included here.

More… ↓

⤷  Try for Free

Make Better Decisions: Try a trial or see plans & pricing

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. 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.