PACCAR Patents PACCAR and Peterbilt invest in, produce and maintain exceptionally high standards of quality in the design, manufacturing and aftermarket support of all of its products. PACCAR’s commitments to innovation and engineering excellence are demonstrated by its investments in its intellectual property, including its worldwide patent portfolio. As you visit PACCAR’s patent portfolio, please understand that, in accordance with section 287(a) of Title 35 of the United States Code, you are placed on notice of the Company's rights in the United States patents listed on this site and other intellectual property rights associated with the products.