On December 7 2009, the Court of Appeals reversed the decision of the Regional Trial Court of Makati dated July 15 1998, finding Philippine Airlines (PAL), the country's national airline, guilty of infringing the patented shell designs of Sabine Koschinger, with award of nominal damages and attorney's fees of P70,000 (about $1,500). Koschinger was the owner of two industrial design patents (4271 and 4273) filed with the Intellectual Property Office (IPPhil) on May 31 1988 and issued on January 24 1989. She claimed that for its first class flight accommodations, PAL used table linen and placemats depicting her designs without her authority. From January to April 1988, PAL purchased its linens and placemats with Koschinger's shell design through the Philippine Trading International Corporation (PITC), but in May 1988 PAL stopped ordering from PITC and sourced it elsewhere.