Hymowitz v. Eli Lilly & Co. [1989]

73 N.Y.2d 487, 539 N.E.2d 1069 (1989) · New York Court of Appeals · United States (New York)

Tortstort-lawTortsProducts liability – DES / market share liability

Issue

Whether liability can be apportioned among DES manufacturers based on market share when the specific manufacturer is unknown.

Held

Yes, liability is apportioned among manufacturers by their respective shares of the market, using a national market share approach.

Exam use

In an exam, introduce Hymowitz v. Eli Lilly & Co. with the citation only if you can remember it accurately; otherwise use the case name and court, then focus on the rule and application. A strong answer should say what Hymowitz v. Eli Lilly & Co. decided, why the facts mattered, and how the authority helps resolve the new facts. Avoid treating the case as a decorative reference. Use it to prove a doctrinal step in Products liability – DES / market share liability, then move quickly to analysis.

Summary

Hymowitz v. Eli Lilly & Co. is included in the Torts case database because it gives students a concrete authority for Products liability – DES / market share liability. The reported citation is 73 N.Y.2d 487, 539 N.E.2d 1069 (1989), and the decision is associated with New York Court of Appeals. In revision, treat the case as a way to connect the legal issue to a real dispute rather than as an abstract rule. The key exam move is to state the holding, identify the fact pattern that made the rule matter, and then decide whether a new problem question should apply, distinguish, or limit the authority.

Facts

The material factual signal for Hymowitz v. Eli Lilly & Co. is: The plaintiff developed cancer from her mother's ingestion of DES during pregnancy; she could not identify which manufacturer produced the specific pill ingested. Students should read the linked source and turn that signal into a short fact table: parties, transaction or public-law setting, procedural posture, conduct in dispute, and the fact the court treated as decisive. This prevents vague case-dropping. In an answer on Torts, use the facts to explain why Products liability – DES / market share liability was live, then compare the problem facts against the facts in the case before stating any conclusion.

Procedural History

Hymowitz v. Eli Lilly & Co. is reported as a decision of New York Court of Appeals. The procedural route should be checked against the linked source before formal citation. For study notes, record whether the decision was an appeal, judicial review, trial judgment, tribunal ruling, or constitutional/application proceeding, because that posture affects how confidently the rule can be used.

Issue

Whether liability can be apportioned among DES manufacturers based on market share when the specific manufacturer is unknown.

Held

Yes, liability is apportioned among manufacturers by their respective shares of the market, using a national market share approach.

Ratio Decidendi

In DES cases where the specific manufacturer cannot be identified, each manufacturer is liable in proportion to its market share of the drug, provided all manufacturers acted tortiously.

Obiter Dicta

Check the linked source for concurring, dissenting, or obiter observations before quoting this case. If the case includes non-binding reasoning, use it as persuasive support rather than as the core rule.

Reasoning

For reasoning, start with the ratio: In DES cases where the specific manufacturer cannot be identified, each manufacturer is liable in proportion to its market share of the drug, provided all manufacturers acted tortiously. Then read the source and separate three things: the legal test, the facts used to apply that test, and any policy or institutional reason the court gave. This structure makes Hymowitz v. Eli Lilly & Co. easier to use in essays and problem questions. In Torts, the case should be compared with related authorities on Products liability – DES / market share liability; if the jurisdiction, statute, or procedural posture differs from the exam problem, explain that limit explicitly instead of treating the authority as automatic.

Plain-English Explanation

Plainly, Hymowitz v. Eli Lilly & Co. is a case to use when a Torts answer needs an authority on Products liability – DES / market share liability. Do not just list it. Explain the problem the court had to solve, the rule or holding it used, and the fact that made the result persuasive. That turns the case from a memorised name into evidence for your legal analysis.

Essay-Ready Explanation Generator

Version 1 of 4

Reference to Hymowitz v. Eli Lilly & Co. (73 N.Y.2d 487, 539 N.E.2d 1069 (1989)) strengthens a Torts answer because the case reflects the principle that In DES cases where the specific manufacturer cannot be identified, each manufacturer is liable in proportion to its market share of the drug, provided all manufacturers acted tortiously. Applied to a problem question, the case should be used after identifying the issue as Whether liability can be apportioned among DES manufacturers based on market share when the specific manufacturer is unknown. The stronger essay move is to connect the material facts to the court's holding, then explain whether the present facts support the same conclusion or justify distinguishing the authority.

Underlying Concepts

  • tort-law
  • Torts
  • Products liability – DES / market share liability
  • case authority
  • exam application

Key Passages

  • Verify exact wording in the linked source before quoting.

Significance

Hymowitz v. Eli Lilly & Co. is significant for LawConquer users because it supplies a named authority for Products liability – DES / market share liability in Torts. The case can anchor a paragraph, support a rule statement, or provide a contrast point when another authority points the other way. Its practical value is strongest when the student links the holding to the material facts and then explains whether the present problem is analogous or distinguishable.

Related Cases

No related cases listed.

Exam Tips

In an exam, introduce Hymowitz v. Eli Lilly & Co. with the citation only if you can remember it accurately; otherwise use the case name and court, then focus on the rule and application. A strong answer should say what Hymowitz v. Eli Lilly & Co. decided, why the facts mattered, and how the authority helps resolve the new facts. Avoid treating the case as a decorative reference. Use it to prove a doctrinal step in Products liability – DES / market share liability, then move quickly to analysis.

Revision Checklist

  • Name the issue before discussing facts so the marker sees the legal question immediately.
  • State the holding in one sentence, then use the ratio to explain why the court reached that result.
  • Use the citation and jurisdiction to show why this authority matters for the problem you are answering.
  • Pair this case with one supporting or contrasting authority if the question tests limits, policy, or exceptions.

Problem Question Use

Use Hymowitz v. Eli Lilly & Co. in a problem question by matching the factual trigger to the new scenario. If the fact pattern aligns with The plaintiff developed cancer from her mother's ingestion of DES during pregnancy; she could not identify which manufacturer produced the specific pill ingested., apply the ratio and explain the likely result. If a crucial fact, jurisdiction, statute, or procedural posture differs, distinguish the case and use it as a boundary rather than a controlling answer.

Common Pitfalls

  • Name-dropping the case without applying the facts
  • Ignoring jurisdiction or procedural posture
  • Quoting without checking the linked source

Sources