Overview
Case summary
Cerealine Manufacturing Company sued Bates et al. for infringing patent No. 223,847 granted to Joseph E. Gent for a process to produce dry, hard flakes from corn. The process involved hulling, granulating, steaming without cooking, and warm-rolling. The patent office initially rejected the application for lack of novelty, but granted it after an amendment adding 'without cooking' to the steaming step. The trial court held the patent invalid for want of novelty and invention, as the steps were known in prior art and the amendment did not create patentable subject matter. The court also found no infringement, as defendants used a different process with water-sprinkled granules and rolls heated only by friction. The bill was dismissed for want of equity.
Abstract
A manufacturing company sued defendants for infringing a patent on a process to produce dry, hard corn flakes involving hulling, granulating, steaming without cooking, and warm-rolling. The patent was initially rejected for lack of novelty but granted after amending the steaming step to specify "without cooking"; however, the trial court invalidated it as the steps were known in prior art and the amendment did not confer patentability. No infringement was found due to defendants' different process using water-sprinkled granules and friction-heated rolls, resulting in dismissal of the bill for want of equity.
Opinion of the court
opinionRAKER, District Judge
- Patent lacks novelty as process steps were known in prior art
- Amendment adding 'without cooking' did not create patentable invention
- Specification fails to disclose cooking temperature needed to produce dextrine
- Defendants' process differs and does not infringe
Jurisdiction
not challenged- Bill in equity filed for alleged infringement of patent
Procedural posture
- Validity of patent for lack of novelty and invention
- Infringement
Legal categories
Case record
Issues & holdings
de novo
Patent void for want of novelty and invention; process steps were known in prior art
Issue preserved for review
de novo
No infringement found as defendants' process differs and patent is invalid
Issue preserved for review
Holdings of the court
Error analysis
- Trial court erred in finding patent invalid and no infringement — procedural · no error foundNot applicable as no error found · not applicable
Statutory interpretation
1Standards of review
- Patent validity and infringement — de novo Court reviews patent claims and infringement determinations de novo
Timeline
Joseph E. Gent files original patent application for alimentary product from corn
Outcome: Application filed
Initial specification claimed process of hulling, granulating, steaming, and warm-rolling
Patent office rejects application for lack of novelty in view of prior patents
Outcome: Rejection
Office cited prior patents showing similar processes
Patent No. 223,847 granted after amended specification adding 'without cooking' to steaming step
Outcome: Patent granted
Patent issued with amended claims
Cerealine Manufacturing Company files bill in equity alleging patent infringement by Bates et al.
Outcome: Suit commenced
Initiation of litigation
Trial court dismisses bill for want of equity, finding patent invalid and no infringement
Outcome: Dismissal
Final trial court decision
Facts & evidence
Key facts
6 facts- Patent No. 223,847 granted to Joseph E. Gent on January 27, 1880 for improved alimentary products from corn
- Process involves hulling, granulating, steaming without cooking, then warm-rolling to produce dry, hard flakes
- Patent application initially rejected by patent office for lack of novelty
- Applicant amended specification to add 'without cooking' to steaming step
- Complainant alleges defendants infringe by similar process using water-sprinkled granules passed through rolls
- Defendants use granules sprinkled with water at 80° to 120° Fahrenheit, passed through rolls with friction-generated heat
Disputed questions
- Whether patent discloses cooking temperature to produce dextrine
- Whether defendants' process infringes the patent
Procedural history
5 steps- Patent application filed September 1, 1879
- Patent office rejected application September 16, 1879
- Specification amended and patent granted January 27, 1880
- Bill in equity filed September 30, 1893
- Trial court hearing and decision January 2, 1897
Evidence in the record
- Patent No. 223,847
- File wrapper showing patent office rejections and amendments
- Prior patents cited by patent office (e.g., Nos. 136,305, 174,316)
- Expert name: Complainant's expert · Expertise: Patent and product analysis · Opinion: Claimed dextrine presence in flakes requires cooking temperature, covered by patent
- Evidence type: Patent specification · Challenge basis: Lack of novelty and invention · Trial court ruling: excluded · Reasoning: Process steps anticipated by prior art · Challenged on appeal: true · Appellate outcome: affirmed
Objects of relevance
Authorities
Cited authorities (3)
Statutes
- Patent laws governing novelty and invention
Standards & doctrines
- De novo review for patent validity and infringement
- Patent office examination standards
Legal principles applied
- Combination of known steps without new result is not patentable
- Patent specification must clearly disclose invention