Legal Opinion

Hemstreet v. Computer Entry Systems Corp.

District Court, N.D. Illinois

Decided June 22, 1990No. 89 C 5935PublishedCited by 5 opinions

1Opinion of the Court

MEMORANDUM OPINION

BRIAN BARNETT DUFF, District Judge.

Harold Hemstreet owns two patents for a device which is capable of automatically reading and sorting written documents. Various companies manufacture such optical character readers, or OCR’s; Mr. Hem-street has licensed some of those companies, among them International Business Machines, Inc. (IBM) and Recognition Equipment, Inc. (REI). Others, such as Computer Entry Systems Corp, (CES), 1 the defendant in this case, are currently involved in legal disputes with him regarding his rights under the patents. Still others, it may be presumed,…

2Cases cited10 opinions

  1. Anderson v. Liberty Lobby, Inc.Supreme Court of the United States · 1986
  2. Celotex Corp. v. Catrett, Administratrix of the Estate of CatrettSupreme Court of the United States · 1986
  3. Jamesbury Corp. v. Litton Industrial Products, Inc.Court of Appeals for the Federal Circuit · 1988
  4. David Leinoff v. Louis Milona & Sons, Inc.Court of Appeals for the Federal Circuit · 1984
  5. Baker Manufacturing Company v. Whitewater Manufacturing CompanyCourt of Appeals for the Seventh Circuit · 1970

5 more not listed; retrieve them via the Exa API.

3Cited by5 opinions

  1. Harold S. Hemstreet v. Computer Entry Systems CorporationCourt of Appeals for the Federal Circuit · 1992
  2. Rockwell International Corp. v. SDL, Inc.District Court, N.D. California · 2000
  3. Harold S. Hemstreet v. Banctec, Inc.Court of Appeals for the Federal Circuit · 1992
  4. Harold S. Hemstreet v. Lundy Electronics & Systems, Inc.Court of Appeals for the Federal Circuit · 1992
  5. Hemstreet v. BancTec, Inc.District Court, N.D. Illinois · 1990

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