General Universal Systems, Inc. (“GUS”) originally sued HAL, Inc. (“HAL”), Joseph Herrin, and Ernest Allen Parkin (“HAL Defendants”) for numerous state and federal claims for stealing proprietary software. GUS also sued a number of companies (“Customer Defendants”) to which HAL licensed the software program. We previously ruled on this case in
General Universal Systems v. Lee,
On remand, the magistrate judge granted summary judgment to the HAL Defendants, finding that the statute of limitations had expired prior to the initiation of the lawsuit. Further, the magistrate judge granted summary judgment to the Customer Defendants, finding that the claims against those parties were not included in the scope of the remand from this court.
We must now determine the accrual date of an alleged trade secret misappropriation and whether the claims against the Customer Defendants were within the scope of our remand.
I
The facts of this case were thoroughly recounted in
General Universal Systems,
In 1979, GUS developed a software program called CHAMPION PACKER for Jose Lopez. CHAMPION PACKER was written in BASIC 4 computer programming language. Later, Lopez created a program based on CHAMPION PACKER but written in COBOL computer programming language instead of BASIC 4; Lopez called the new derivative program LOPEZ COBOL and began selling and leasing the program to clients through his company World Trade Systems, Inc. One of those clients was Superior Packing, Inc., a company owned by Herrin. In 1988, Lopez leased a computer to Superior Packing and licensed Superior Packing to use LOPEZ COBOL. At that time, Superior Packing also had a license from GUS to use CHAMPION PACKER; the GUS license originated in 1985. Both license agreements restricted the use and distribution of the relevant computer programs.
In 1992 Herrin and Parkin agreed to work with Lopez to develop and market a new software program to succeed LOPEZ COBOL. The three intended to form a corporation, HAL, Inc., to develop and market the software and then split the shares and profits amongst each other. The program was to be based in large part on LOPEZ COBOL. They began working on the design of the program, called ME-PAW, in the summer of 1992. Beginning in December 1992, Lopez spent seven months incarcerated in a Mexican prison. In a letter of March 22, 1993, Herrin notified Lopez that he and Parkin agreed to oust Lopez from their agreement because Lopez’s incarceration prevented him from fulfilling his duties. Through HAL, Her-rin and Parkin continued the development of MEPAW until August or September *448 1993, when they began marketing ME-PAW to potential clients.
Just prior to the ousting of Lopez, in February 1993, Herrin sent Lopez a letter stating that Superior Packing was terminating its license agreement with World Trade Systems for the use of LOPEZ COBOL. In March 1993, Lopez’s son went to Superior Packing to pick up World Trade Systems’s computer, which contained the LOPEZ COBOL software, but was told that Superior Packing was not finished with the program. Lopez claims that his son then entered an oral agreement to allow Superior Packing to use the computer and software until July 1993, and he produced a receipt showing that Superior Packing paid a license fee to World Trade Systems in July 1993.
Although HAL began demonstrating MEPAW in the fall of 1993, it did not license the software to any customers until October 1994; the first licensee was Panal-pina, Inc. By then, Lopez and World Trade Systems assigned all their rights in LOPEZ COBOL to GUS. In November 1994, GUS put Panalpina on notice that MEPAW was improperly derived from its packing software. HAL continued to li-cence MEPAW to other customers as well: Fritz Companies, Inc.; United States Crating, Inc.; and Transworld Logistics, Inc. 1 GUS asserts that all of the Customer Defendants were on notice.
GUS filed suit against the HAL Defendants and the Customer Defendants in May 1995. In that complaint, GUS raised numerous claims, both state and federal, most of which lost on summary judgment; a contract claim went to trial, but the magistrate judge entered judgment as a matter of law for the defendants. On appeal, we affirmed the magistrate judge’s ruling on all claims, except the misappropriation of trade secrets claim, on which we reversed and remanded. Following the remand, the magistrate judge granted summary judgment to the defendants, finding the trade secrets misappropriation claim against the HAL Defendants was barred by Texas’s two-year statute of limitations and the related claim against the Customer Defendants was outside the scope of our remand.
II
“We review a grant of summary judgment
de novo,
applying the same standards as the district court.”
Triple Tee Golf, Inc. v. Nike, Inc.,
A
We look first at the magistrate judge’s determination that GUS was time barred from raising its trade secret misappropriation claim against the HAL Defendants on May 23, 1995, the date GUS initially filed its complaint. All parties *449 agree that this claim was subject to a two-year statute of limitations. 2 Therefore, our task is to determine whether all of GUS’s claims of trade secret misappropriation accrued before May 23,1993.
The Texas courts have held that “a cause of action accrues when a wrongful act causes some legal injury, even if the fact of injury is not discovered until later, and even if all resulting damages have not yet occurred.”
S.V. v. R.V.,
In our prior opinion in this case, only the first and second elements were at issue, and we held that there was a genuine issue of material fact as to each — namely, whether Lopez sufficiently protected his computer software program and whether the agreement between Lopez, Herrin, and Parkin constituted a confidential relationship for the purposes of establishing the elements of the claim.
General Universal Sys.,
1
The magistrate judge applied the ousting of Lopez from HAL as the date on which the relevant confidential relationship would have been dissolved; therefore, the magistrate judge treated any “use” of LOPEZ COBOL after the ousting as the date on which the action accrued. GUS argues that the confidential relationship issue is more complicated, because aside from the agreement between Lopez, Herrin, and Parkin to form HAL, there are two other agreements relevant to our analysis — specifically, the license agreement between GUS and Superior Packing, which allows Superior Packing to use CHAMPION PACKER, and the license agreement be *450 tween World Trade Systems and Superior Packing, which allows Superior Packing to use LOPEZ COBOL. GUS contends that the CHAMPION PACKER license agreement never expired because Superior Packing never returned the computer and software, and the LOPEZ COBOL license agreement expired at the end of July 1993. As a result, GUS argues that Herrin and Parkin were authorized to use CHAMPION PACKER and LOPEZ COBOL even after they ousted Lopez from the HAL group.
Although during that time, Herrin was the president of Superior Packing and a member of the HAL group, the licenses granted to Superior Packing did not authorize Herrin to utilize the programs to develop a competing software program for a third-party corporation, HAL, which is not a party to either license agreement. It is undisputed that Herrin and Parkin relied on LOPEZ COBOL, and therefore allegedly relied on CHAMPION PACKER, to develop MEPAW for HAL. And GUS even stipulates that HAL, rather than Superior Packing, had a commercially viable version of MEPAW based on LOPEZ COBOL in March 1993. Because these actions cannot be said to be within the scope of GUS’s and World Trade System’s respective licensing agreements with Superior Packing, these license agreements do not sanction the HAL Defendants’ development of MEPAW.
Therefore, the magistrate judge properly focused on the agreement between Lopez, Herrin, and Parkin as the only possible basis for a breached confidential relationship supporting the claim of trade secret misappropriation. Because Lopez was ousted from the HAL group in March 1993, any use of LOPEZ COBOL by the HAL Defendants after March 1993 would mark the accrual of Lopez’s claim of trade secret misappropriation.
2
GUS also challenges the magistrate judge’s definition of “use” with respect to the third element of trade secret misappropriation. The magistrate judge held that the HAL Defendants “used” LOPEZ COBOL when they refused to return World Trade Systems’s computer containing LOPEZ COBOL in March 1993. The Texas Supreme Court has stated, “A cause of action for misappropriation of trade secrets accrues when the trade secret is
actually used.” Computer Assocs. Int’l v. Altai, Inc.,
*451 As a general matter, any exploitation of the trade secret that is likely to result in injury to the trade secret owner or enrichment to the defendant is a “use” under this Section. Thus, marketing goods that embody the trade secret, employing the trade secret in manufacturing or production, relying on the trade secret to assist or accelerate research or development, or soliciting customers through the use of information that is a trade secret (see § 42, Comment f) all constitute “use.”
Restatement Third of Unfair Competition, § 40. 5
Based on these definitions, it is clear the HAL Defendants “used” LOPEZ COBOL, not by refusing to return World Trade System’s computer in March 1993, but by continuing to rely on LOPEZ COBOL, either directly or those portions incorporated into MEPAW, to accelerate the development and marketability of MEPAW, as GUS alleges. This continued use of LOPEZ COBOL certainly represents an exploitation of LOPEZ COBOL that was likely to result in injury to Lopez and enrichment to the HAL Defendants, and it occurred both after the ousting of Lopez and before May 28, 1993, two years prior to GUS filing the complaint.
3
GUS further argues that trade secret misappropriation is a continuing tort. “In a continuing-tort case, the wrongful conduct continues to effect additional injury to the plaintiff until that conduct stops.”
Upjohn Co. v. Freeman,
Although often used by Texas intermediate courts, “[t]he Texas Supreme Court has not ‘endorsed nor addressed’ the concept of the continuing tort doctrine.”
Walston v. Stewart,
*452
A close examination of Texas cases, though, reveals that Texas would have unlikely treated trade secret misappropriation as a continuing tort prior to the 1997 legislation. In
K & G Oil Tool & Service Co. v. G & G Fishing Tool Service,
Our caselaw similarly suggests that trade secret misappropriation should not be treated as a continuing tort under Texas law. In
Daboub v. Gibbons,
Based on the weight of caselaw, we decline to apply the concept of a continuing tort to the Texas common law claim of trade secret misappropriation, as it was applied prior to 1997. As a result, the magistrate judge properly treated GUS’s claim of trade secret misappropriation against the HAL Defendants as time barred.
B
This leaves the question of whether GUS’s claims against the Customer Defendants are within the scope of the remand. The magistrate judge ruled that the claims were not within the scope of the remand and, therefore, applying the mandate rule, the magistrate judge granted summary judgment to the Customer Defendants.
“ ‘We review
de novo
a district court’s interpretation of our remand order, including whether the law-of-the — case doctrine or mandate rule forecloses any of the district court’s actions on remand.’ ”
United States v. Elizondo,
“The mandate rule requires a district court on remand to effect our mandate and to do nothing else.”
United States v. Castillo,
Our prior opinion and the circumstances it embraces disposed of any issues related to the Customer Defendants through waiver. By failing to brief any arguments against the Customer Defendants, GUS waived any claims against the Customer Defendants. While our prior opinion did not explicitly address the Customer Defendants nor any claim by GUS brought against them, this is not surprising based on the absence of any arguments against the Customer Defendants in GUS’s brief in the original appeal. GUS’s brief dealt only with arguments against the summary judgment granted to the HAL Defendants. Mere mention of the Customer Defendants in the opening sections of the brief does not suffice to preserve arguments against them on appeal.
See, Justiss Oil Co., Inc. v. Kerr-McGee Refining Corp.,
The disposition of the Customer Defendants’ claims is also supported by our treatment of the trade secret claim in our prior opinion. In discussing the trade secret misappropriation issue, our prior opinion references reversal of the summary judgment motion in favor of HAL and HAL alone.
General Universal Systems,
Because GUS failed to brief, and thus waived, any arguments against the Customer Defendants on appeal, the district court’s judgment finally disposed of any claims against those defendants. As a result, our remand in the prior opinion did not include any claims against the Customer Defendants. Therefore, we affirm the magistrate judge’s grant of summary judgment to the Customer Defendants.
Ill
We AFFIRM the magistrate judge’s grant of summary judgment to the HAL Defendants and to the Customer Defendants.
Notes
. These companies and Panalpina, Inc. are the defendants referred to as the “Customer Defendants.” Global Southport Services, Inc. was originally also named as a Customer Defendant, but it was dismissed from the case for failure to serve process. See Final Judgment of District Court, Sep. 15, 2000 at *1-2. That dismissal was never challenged, and Global Southport Services, Inc. was not named as a defendant — appellee in the prior appeal. Therefore, Global Southport Services, Inc. is not subject to GUS's claims in this case.
. In 1997, Texas law was amended to extend the statute of limitations period to three years. Tex. Civ. Prac. & Rem.Code § 16.010(a). This statute also added a discovery rule to the claim, such that a claim for trade misappropriation did not accrue until the plaintiff knew of or should have known of the violation. The Texas Supreme Court had previously ruled that the discovery rule was not applicable to claims of trade secret misappropriation.
Computer Assocs. Int’l v. Altai, Inc.,
. GUS is not seeking relief under the Texas Theft Liability Act. Tex. Civ. Prac. & Rem. Code §§ 134.002(2), 134.003. Although, in various pleadings, GUS has made reference to "trade secret theft,” the complaint alleges common-law trade secret misappropriation, and GUS has not briefed the claim as being brought under the Texas Theft Liability Act.
. The magistrate judge defined "use” as " '[a]ny misappropriation of trade secrets, followed by an exercise of control and dominion [sic], is considered a commercial use.'" Memorandum and Order of Magistrate Judge, July 29, 2005 at *11 (quoting
Garth v. Staktek Corp.,
. Sections on unfair competition, including trade secret misappropriation, appeared in Restatement First of Torts (1939), but were left out of Restatement Second of Torts (1957). These sections now appear in Restatement Third of Unfair Competition. Although Texas courts still often cite to the Restatement of Torts, the Texas Supreme Court has at times relied on the Restatement 3d of Unfair Competition.
See, e.g., In re Bass,
. This case has a long and complicated procedural history, including an opinion from the Texas Supreme Court,
Computer Assocs. Int’l
v.
Altai, Inc.,
