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Smart Summary

Factual and Procedural Background

This case involves a patent infringement suit filed by Union Carbide Corporation against Microtron Corporation. Microtron filed a motion for summary judgment arguing that the patent held by Union Carbide was invalid because the patent applicant filed a corresponding patent application in Canada within six months of the U.S. application without obtaining the required license under 35 U.S.C. § 184. After the lawsuit was initiated, the patent applicant obtained a retroactive license from the U.S. Commissioner of Patents. The court was tasked with determining whether this retroactive license cured the patent's invalidity caused by the unlicensed foreign filing.

Legal Issues Presented

  1. Whether a patent is invalid under 35 U.S.C. § 185 if a corresponding foreign patent application is filed within six months of the U.S. application without a license as required by 35 U.S.C. § 184.
  2. Whether a retroactive license issued by the Commissioner of Patents after issuance of the patent can cure the invalidity caused by the unlicensed foreign filing.

Arguments of the Parties

Defendant's (Microtron Corporation) Arguments

  • The patent is invalid because the foreign patent application in Canada was filed within six months of the U.S. application without the required license, violating 35 U.S.C. §§ 184 and 185.
  • The retroactive license obtained after the patent's issuance does not cure the invalidity, relying principally on the decision in Minnesota Mining Manufacturing Co. v. Norton Co., which held that the Commissioner cannot affect patent validity by issuing a retroactive license.

Plaintiff's (Union Carbide Corporation) Position

  • The retroactive license granted by the Commissioner of Patents is authorized by the explicit language of 35 U.S.C. § 184 and thus cures the invalidity imposed by the unlicensed foreign filing.
  • The Minnesota Mining decision is disapproved by other cases, and the legislative history supports the Commissioner's authority to grant retroactive licenses even after patent issuance.
  • The foreign filing was inadvertent and did not jeopardize national security or public safety, which are the underlying concerns of the statutes.

Table of Precedents Cited

Precedent Rule or Principle Cited For Application by the Court
Minnesota Mining Manufacturing Co. v. Norton Co., 240 F. Supp. 150 (N.D. Ohio 1965) Holding that unlicensed foreign filing within six months renders the U.S. patent invalid and that a retroactive license cannot cure such invalidity. Microtron relied on this case to argue for patent invalidity; the court noted it was disapproved by later decisions.
Nordberg Manufacturing Co. v. Jackson Vibrators, Inc., Civil No. 63C2250 (N.D. Ill. 1966) Disapproved the Minnesota Mining rationale and supported retroactive licensing authority. Considered by the court as part of the majority view favoring retroactive license validity.
Engelhard Industries, Inc. v. Sel-Rex Corp., 145 U.S.P.Q. 319 (D.C.N.J. 1965) Supported the authority of retroactive licenses under 35 U.S.C. § 184. Used to support the court’s acceptance of retroactive licensing curing invalidity.
Davidson Rubber Co., Inc. v. Sheller Manufacturing Corp., 147 U.S.P.Q. 511 (S.D. Iowa 1965) Supported retroactive licensing authority. Referenced as consistent precedent rejecting the strict invalidity rule.
McCormick v. Brenner, 146 U.S.P.Q. 340 (D.C.D.C. 1965) Supported retroactive license validity. Considered by the court to support its holding.
Pillsbury Co. v. Brenner, 146 U.S.P.Q. 99 (D.C.D.C. 1965) Supported retroactive licensing and statutory interpretation consistent with granting such licenses. Used to bolster the court's understanding of legislative intent.
Blake v. Bassick Co., 245 F. Supp. 635 (N.D. Ill. 1965) Held that Section 184 expressly authorizes retroactive licenses and Section 185 refers to such licenses. Key case for the court's rejection of the Minnesota Mining position.
Pillsbury Co. v. General Mills, Inc., 252 F. Supp. 747 (D.C. Minn. 1966) Interpreted legislative history to support retroactive licensing authority. Reinforced the court's analysis of statutory purpose and interpretation.
Barr Rubber Products Co. v. Sun Rubber Co., 253 F. Supp. 12 (S.D.N.Y. 1966) Supported retroactive license authority. Considered as part of the majority view favoring retroactive cure of invalidity.
McCulloch Motors Corp. v. Oregon Saw Chain Corp., 245 F. Supp. 851 (S.D. Calif. 1963) Supported retroactive licensing authority. Referenced in the court’s analysis.
Blake v. Bassick Co., 146 U.S.P.Q. 157 (N.D. Ill. 1963) Supported retroactive license authority. Used to confirm the court’s interpretation of the statute.
In re Rinker and Duva, 145 U.S.P.Q. 156 (Commr. of Patents 1964) Supported retroactive license authority. Considered persuasive by the court.
Beckman Instruments, Inc. v. Coleman Instruments, Inc., 338 F.2d 573 (7th Cir. 1964) Held that unlicensed foreign filing within six months invalidates the patent; concerned timing of filing for continuation-in-part applications. The court found this case inapplicable to the retroactive license issue here.

Court's Reasoning and Analysis

The court acknowledged that under 35 U.S.C. § 185, a patent issued when a foreign application was filed without the required license within six months is invalid. However, the core issue was whether the retroactive license obtained after issuance could cure the invalidity. The court rejected the strict interpretation from Minnesota Mining Manufacturing Co. v. Norton Co., which denied retroactive curing authority, noting that this case had been disapproved by several other decisions.

The court emphasized the explicit statutory language in 35 U.S.C. § 184 authorizing the Commissioner to grant retroactive licenses, including after patent issuance. The legislative history and multiple precedents supported this interpretation. The court reasoned that the purpose of the statutes was to prevent inadvertent disclosures harmful to national security, and since the retroactive license indicated inadvertence and no harm to national interest, invalidating the patent on a technicality would be unjustifiably harsh.

The court distinguished Beckman Instruments, which dealt with a different procedural issue unrelated to retroactive licensing. Ultimately, the court concluded that the retroactive license granted was effective to cure the patent's invalidity caused by the unlicensed foreign filing.

Holding and Implications

The court DENIED Microtron Corporation's motion for summary judgment.

The court held that the retroactive license issued by the Commissioner of Patents effectively cured the patent's invalidity resulting from the unlicensed foreign filing within six months. This decision directly affects the parties by preserving the validity of the patent held by Union Carbide Corporation. The opinion does not establish new precedent beyond affirming the authority of retroactive licensing under 35 U.S.C. § 184 and its effect on patent validity under § 185.

UNION CARBIDE CORPORATION, Plaintiff, v. MICROTRON CORPORATION, Defendant.

MEMORANDUM OF DECISION

CRAVEN, Chief Judge.

In this suit for patent infringement brought by Union Carbide Corporation against Microtron Corporation, Microtron counters with a motion for summary judgment on the ground that within six months of the date on which application for the patent was filed in the United States Patent Office an application was also filed in Canada without a license as required by Title 35 U.S.C.A. § 184. Such unlicensed foreign filing, Microtron contends, renders the patent invalid as a matter of law under Title 35 U.S.C.A. § 185. On February 28, 1966, after the institution of this lawsuit, Microtron secured from the United States Commissioner of Patents a retroactive license.

The license reads as follows: "License under 35 U.S.C. § 184 is hereby granted to file in any foreign country a patent application and any amendments thereto corresponding to the subject matter of the U.S. application identified above and/or any material accompanying the petition. This license is retroactive to October 7, 1953 with respect to Canada." (Emphasis mine.)

The patent involved, No. 2,784,132, was issued upon the application of Emanuel N. Maisel filed in the United States Patent Office on May 11, 1953. The application was entitled "Batt and Method of Making Same". This application was assigned to the Laminaire Company, consisting of Maisel, Joseph J. Klein, and two other persons. Subsequently Fiber Bond Corporation became the assignee of the patent application, and in 1962 its stocks and assets were acquired by Union Carbide Corporation, the plaintiff in this action.

The Canadian application, corresponding to the one in issue here, was filed on October 10, 1953 (within six months of the United States filing). The Canadian patent issued on February 11, 1958.

Section 184 of Title 35 United States Code provides:

"Except when authorized by a license obtained from the Commissioner a person shall not file or cause or authorize to be filed in any foreign country prior to six months after filing in the United States an application for patent or for the registration of a utility model, industrial design, or model in respect of an invention made in this country. A license shall not be granted with respect to an invention subject to an order issued by the Commissioner pursuant to section 181 of this title without the concurrence of the head of the departments and the chief officers of the agencies who caused the order to be issued. The license may be granted retroactively where an application has been inadvertently filed abroad and the application does not disclose an invention within the scope of section 181 of this title.
"The term `application' when used in this chapter includes applications and any modifications, amendments, or supplements thereto, or divisions thereof."

Section 185 of Title 35 United States Code provides:

"Notwithstanding any other provisions of law any person, and his successors, assigns, or legal representatives, shall not receive a United States patent for an invention if that person, or his successors, assigns, or legal representatives shall, without procuring the license prescribed in section 184 of this title, have made, or consented to or assisted another's making, application in a foreign country for a patent or for the registration of a utility model, industrial design, or model in respect of the invention. A United States patent issued to such person, his successors, assigns, or legal representatives shall be invalid." (Emphasis mine.)

Clearly, receiving the patent "without procuring the license" violates the statute. The Maisel patent was, at the time of its issuance, invalid under the portion of Section 185 which states: "A United States patent issued to such person * * * shall be invalid."

But the question for decision on Microtron's motion for summary judgment is whether the retroactive license procured on February 28, 1966, by Maisel (some nine years after the issuance of the patent) cured the invalidity imposed for foreign filing without a license prior to the end of six months after the United States application was filed.

In support of its motion, Microtron relies primarily on Minnesota Mining Manufacturing Co. v. Norton Co., 240 F. Supp. 150 (N.D.Ohio 1965). That case held the filing of a patent application in a foreign country within six months of United States filing without complying with Title 35 U.S.C.A. § 184 renders the United States patent invalid from the date of issuance, and that the Commissioner of Patents is powerless to affect the validity or invalidity of the patent by issuing a retroactive license. This case was considered and disapproved in Nordberg Manufacturing Co. v. Jackson Vibrators, Inc., Civil No. 63C2250, N.D.Ill. February 10, 1966 (letter opinion); Engelhard Industries, Inc. v. Sel-Rex Corp., 145 U.S.P.Q. 319 (D.C.N.J. 1965); Davidson Rubber Co., Inc. v. Sheller Manufacturing Corp., 147 U.S.P.Q. 511 (S.D. Iowa 1965); McCormick v. Brenner, 146 U.S.P.Q. 340 (D.C.D.C. 1965); Pillsbury Co. v. Brenner, 146 U.S.P.Q. 99 (D.C.D.C. 1965); Blake v. Bassick Co., 245 F. Supp. 635 (N.D.Ill. 1965); Pillsbury Co. v. General Mills, Inc., 252 F. Supp. 747 (D.C.Minn. 1966); Barr Rubber Products Co. v. Sun Rubber Co., 253 F. Supp. 12 (S.D.N.Y. 1966). To the same effect are: McCulloch Motors Corp. v. Oregon Saw Chain Corp., 245 F. Supp. 851 (S.D. Calif. 1963); Blake v. Bassick Co., 146 U.S.P.Q. 157 (N.D.Ill. 1963); and In re Rinker and Duva, 145 U.S.P.Q. 156 (Commr. of Patents 1964).

This case is presently on appeal to the Sixth Circuit Court of Appeals.

It is unnecessary to detail here the legislative history of Sections 184 and 185. That has been exhaustively reviewed in some of the cases cited above. For good discussions of such history, however, see 34 Geo.Wash.L.Rev. 373 (1965) and 64 Mich.L.Rev. 496 (1966).

In Blake v. Bassick, D.C., 245 F. Supp. at 637, the court, squarely disagreeing with the rationale of Minnesota Mining Manufacturing Co. v. Norton, supra, stated that "express Congressional authorization in Section 184 gives the right to grant retroactive licenses, and Section 185 refers to the license prescribed in Section 184. One such license prescribed by Section 184 is the retroactive license."

The court in Pillsbury Co. v. General Mills, Inc., supra, declared that "[t]he legislative history of Sections 184 and 185 does not suggest an interpretation of these statutes contrary to the majority holding as above stated. Moreover, it may be noted that in the Minnesota Mining and Manufacturing Co. case, [ 240 F. Supp. 150] the court, in part, at least, rested its decision [and was led astray] by [its] concluding that the word `application' in Section 184 referred to the domestic application for the patent rather than the foreign application for which the license is to be granted. * * *"

"The broad language as to the right of the Commissioner to grant a retroactive license under Section 184 does not disclose any intention of Congress to limit the Commissioner's authority in this regard to unissued patents. It is not made to appear that the defendant or any member of the public will be, or has been, prejudiced by the interpretation of Section 184 which this Court now adopts, or that the safety of this country has been endangered in any way by the inadvertence of the plaintiff in failing to obtain a license within the six months' period. An interpretation of the law which is needlessly harsh is not justified under the admitted circumstances." Id. at 751.

Another case upon which Microtron places much emphasis is Beckman Instruments, Inc. v. Coleman Instruments, Inc., 338 F.2d 573 (7th Cir. 1964). The Court in Beckman, however, was not concerned with the validity of a patent as affected by the issuance of a retroactive license. That case held only that where foreign applications were filed within six months after the filing of a second United States application, without obtaining a license, the patent was invalidated. The second application was a "continuation-in-part" of the first application held to have been abandoned. The crucial question in that case was whether the six months began to run from the date of the first United States application, which was abandoned, or the second application. Beckman is not in point here.

The purpose of Sections 184 and 185, as clearly pointed out by their legislative history, was to prevent inadvertent disclosure of information which might prove detrimental to the safety and welfare of this country. That a retroactive license was granted in this case clearly indicates that the prohibited foreign filing was inadvertent and not detrimental to the national interest of the United States. Certainly the safety of the country has not been placed in jeopardy. To hold the patent invalid on the technicality urged would be unduly harsh and contrary to the better reasoned cases.

See Hearings Before Subcommittee No. 4, Committee on the Judiciary, House of Representatives, 81st Congress, 2d Session, on H.R. 6389 (1950).

It is adjudged that the granting of the retroactive license was effective to cure the patent's invalidity caused by foreign filing within the six months period.

The motion for summary judgment will be denied.

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UNION CARBIDE CORPORATION v. MICROTRON CORPORATION, (W.D.N.C. 1966)
(May 24, 1966)