The unauthorized use of patents by the federal government is generally connected with procurement. The government purchases goods and services from federal contractors and the government wants the best products and services without delay; therefore, "the government will not refuse to award a contract on the grounds that the prospective contractor may infringe a patent," as per 48 C.F.R. 27.102(b).

Whenever an invention covered by a patent is used or manufactured by or for the United States without a license, the owner's remedy is to file an action against the United States in the U.S. Court of Federal Claims for the recovery of his or her reasonable and entire compensation. The federal contractor is immune from suit and the patentee cannot obtain injunction against a government contractor for infringement. The contractor is not even named as a party to the litigation; however, the government does give notice to the contractor and the contractor may choose to file a petition to join in the litigation when the government procurement contract contains an indemnification clause. The immunity of a government contractor does not extend to private sales.

The government is sued for direct patent infringement, not for inducing infringement by another or for contributory infringement. The government defends, not as an ordinary infringer, but rather as a compulsory, nonexclusive licensee. As such, the limitation of damages found in 35 U.S.C. 287, for unmarked products, is not available to the government; however, the government may repair items it purchases. Punitive damages are not available. A jury trial is not available.

The suit must be filed in the Court of Federal Claims. Once filed, the Court of Federal Claims guides discovery by encouraging the parties to agree on the scope of e-discovery and by directing the parties to file an initial identification of the accused products and the claims of the patent that they infringe. A claims construction hearing is then scheduled at the close of discovery. A time schedule is then set for the filing of expert reports, expert witness depositions and trial. The trial itself can be heard anywhere in the nation as the Court of Federal Claims is a court of national jurisdiction.

Condemnation Damages

When the federal government uses a patent without consent of the owner, patent infringement damages are out and condemnation damages are in. This is because the U.S. government is not an ordinary infringer. When the government issues patents, it reserves for itself the right to use the patents it issues. The government's use of a patented invention without an express license from the patentee is not patent infringement. It is a taking of property under the Fifth Amendment through the government's exercise of its power of eminent domain.

The Fifth Amendment provides that private property shall not be taken for public use without "just compensation," and "just compensation" means the full monetary equivalent of the property taken. The patent owner is to be put in the same position monetarily as he or she would have occupied if his or her property had not been taken. Just compensation is "what the owner has lost, not what the taker has gained"; however, the cost savings of the infringer is a factor that may be considered in the finding of fair compensation.

The computation of damages involves two steps: (1) determination of a reasonable compensation base, i.e., the total value of the infringing items on which the plaintiffs are entitled to receive compensation, and (2) determination of a reasonable compensation rate to apply to that compensation base.

The reasonable compensation base is generally the amount the government paid for the patented product; however, the entire market value rule permits a patentee to seek both the value of patented components and the additional value of unpatented components sold with the patented components. This rule is applied where the patented feature creates the basis for consumer demand or substantially creates the value of the component parts.

Several approaches have been taken toward the calculation of reasonable compensation rate, including established royalty, lost profits and reasonable royalty. The best approach depends on the facts of the case.

The Patentholder's Established Royalty

Proof of an established royalty is appropriate when the patentholder has an established royalty for the product. A court may, for example, adopt a royalty rate if a substantial number of licensees in a relevant market have considered it reasonable. Where an established royalty rate for the patented inventions is shown to exist, that rate will usually be adopted as the best measure of reasonable and entire compensation.

The Patentholder's Lost Profits

To recover lost profits damages, the patentee must show a reasonable probability that, "but for" the infringement, it would have made the sales that were made by the infringer. In a two-supplier case, the patentee must show that the relevant market contains only two suppliers, its own marketing and manufacturing capability to make the sales that were diverted to the infringer and the amount of profit it would have made from the diverted sales. Causation need not be proven with certainty, but the patentholder is required to show a reasonable probability that the patent owner would have made the sales involving the infringing products. The standard formula for lost profits is that the profit equals the retail price minus cost of manufacturing.

Reasonable Royalty

Where a patentee cannot prove lost profits, infringer's profits or an established royalty, the patentee can show the value of his or her loss by proving what would have been a reasonable royalty. The reasonable royalty is based on a hypothetical negotiation between willing licensor and licensee. The hypothetical negotiation is considered to have taken place on the date of the first infringement by the government; however, as Judge Marian Horn stated in Standard Manufacturing v. United States, 42 Fed. Cl. 748, 756 (1999): "The hypothetical negotiation encompasses fantasy and flexibility; fantasy because it requires a court to imagine what warring parties would have agreed to as willing negotiators; flexibility because it speaks of negotiations as of the time of infringement began, yet permits and often requires a court to look to events and facts that occurred thereafter and that could not have been known to or predicted by the hypothesized negotiators."

In its simplest terms, the reasonable royalty rate is the amount that a person who desires to manufacture, use or sell a patented article would be willing to pay as a royalty and yet still be able to make a reasonable profit. However, the hypothetical negotiation is never so simple. All relevant factors are to be considered and any factor is relevant if it would have tended to affect the price set by hypothetical negotiators. The reasonable royalty is generally determined under the approach set forth in Georgia-Pacific v. United States Plywood, 318 F.Supp 116, mod. and aff., 446 F.2d 295 (2nd Cir. 1971), cert denied, 404 U.S. 870 (1971), and its progeny.

As a heuristic tool, Horn found it useful to establish a baseline royalty rate and then add 1, 2 or 4 percentage points to that rate depending upon whether Georgia-Pacific factors somewhat favor, favor or strongly favor a higher royalty. The damage award is then computed by multiplying the royalty rate times the compensation base.

Delay Damages

Prejudgment interest is to be paid at a rate of 7.5 percent (based on Moody's corporate bond index) without need of proof in the individual instance, unless and until it is affirmatively demonstrated that the rate should be different. The 52-week T-Bill rates have also been used, but the use of T-Bill rates has been criticized. The interest rate is generally compounded, but this is up to the discretion of the trial court.

Attorney Fees

Attorney fees can be awarded if the owner is an independent inventor, a nonprofit organization or a small business. A fee petition will be denied if the court finds that the position of the United States was substantially justified or that special circumstances make an award unjust. The fees may be awarded if either the government's prelitigation conduct or its litigation position are not substantially justified.


Filing a patent infringement claim against the federal government has its own set of special rules; however, when calculating reasonable and entire compensation, equitable principles of fairness control; therefore, the government is not automatically entitled to infringe a patent at a cheaper rate than a private infringer.

Daniel Ernsberger is an attorney with the law firm of Behrend and Ernsberger in Pittsburgh.