Roebuck and Garbet, pursuers, claimed that they obtained a patent in 1771 for a process that produced sulfuric acid in vessels of lead, instead of in vessels of glass. The patent allegedly gave Roebuck and Garbet the exclusive privilege of using this process in Great Britain for fourteen years. Roebuck and Garbet claimed that William and Andrew Stirling were constructing buildings in Glasgow for the purpose of using Roebuck and Garbet's patented process. Roebuck and Garbet applied for a bill of suspension, but Lord Hailes found no patent transgression in the construction of the buildings. Roebuck and Garbet applied for a second bill of suspension, but the court did not prohibit the Stirlings from producing sulfuric acid in vessels of lead while the case was pending. Because their patent only lasts fourteen years, Roebuck and Garbet sought to stop the Stirlings' activity immediately. They argued that the continued activity of the Stirlings causes Roebuck and Garbet material loss and rendered their patent ineffective.
Sir David Dalyrymple of Hailes, Decisions of the Lords of Council and Session, from 1766 to 1791 (1826), pg. 512