CHANROBLES VIRTUAL LAW LIBRARY
US LAWS, STATUTES and CODES : Chan Robles Virtual Law Library USA Supreme Court Decisions | Resolutions : Chan Robles Virtual Law Library

ChanRobles™ Virtual Law Library™ | chanrobles.com™   
Main Index Repository of Laws, Statutes and Codes Latest Philippine Supreme Court Decisions Chan Robles Virtual Law Library Latest Legal Updates Philippine Legal Resources Significant Philippine Legal Resources Worldwide Legal Resources Philippine Supreme Court Decisions United States Legal Resources United States Supreme Court Jurisprudence ChanRobles LawTube - Social Network

ChanRobles Internet Bar Review : www.chanroblesbar.com DebtKollect Company, Inc. - Debt Collection Firm Intellectual Property Division - Chan Robles Law Firm

Philippine Supreme Court DecisionsChanRobles On-Line Bar Review

google search for chanrobles.comSearch for www.chanrobles.com


DOW CHEMICAL CO. V. HALLIBURTON OIL WELL CEMENTING CO., 324 U. S. 320 (1945)

Subscribe to Cases that cite 324 U. S. 320 RSS feed for this section

U.S. Supreme Court

Dow Chemical Co. v. Halliburton Oil Well Cementing Co., 324 U.S. 320 (1945)

Dow Chemical Co. v. Halliburton Oil Well Cementing Co.

Argued February 6, 1945

Decided March 5, 1945*

324 U.S. 320

Syllabus

1. To resolve a conflict between Circuit Courts of Appeals as to the validity of a patent, this Court will determine independently the factual issue of validity. P. 324 U. S. 322.

2. Grebe and Sanford Patent No. 1,877,504, Claims 1, 5, 7, 8 and 9, for a method of treating deep wells to increase production, held invalid for want of invention. Pp. 324 U. S. 324, 324 U. S. 331.

In the described process, there was no patentable invention in any of the following claims or any combination thereof: (1) addition of an inhibiting agent to the hydrochloric acid solution to prevent corrosion; (2) use of a dilute, rather than a concentrated, hydrochloric acid solution; (3) use of the ordinary pump tube instead of a specially protected supply pipe to introduce the acid into the well.

3. The application of an old process to a new and analogous use lacks the very essence of an invention. P. 324 U. S. 327. chanroblesvirtualawlibrary

Page 324 U. S. 321

4. The mere addition of water to dilute a known chemical solution does not entitle one to a patent monopoly, at least unless a definite dilution point or range is discovered corresponding to a physical phenomenon. P. 324 U. S. 329.

5. The mere substitution of equivalents which do substantially the same thing in the same way, even though better result may be produced, is not such an invention as will sustain a patent. P. 324 U. S. 330.

6. That a claimed invention filled a long felt want and has been a commercial success is relevant only when the question of invention is otherwise in doubt. P. 324 U. S. 330.

139 F.2d 473 affirmed.

Certiorari, 322 U.S. 719, on cross-petitions by a patent owner (petitioner in No. 50) and an alleged infringer (cross petitioner in No. 61), to review the affirmance of a decree holding invalid certain claims of a patent and dismissing the complaint in a suit for infringement.





Back
ChanRobles™ LawTube

google search for chanrobles.com Search for www.chanrobles.com


Supreme Court Decisions Philippine Supreme Court DecisionsUS Supreme Court Decisions



www.chanrobles.us




QUICK SEARCH

cralaw

Browse By ->> Volume


cralaw

Browse By ->> Year


cralaw

  Copyright © ChanRobles Publishing Company | Disclaimer | E-mail Restrictions
ChanRobles™ Virtual Law Library | chanrobles.com™
 
RED