Ownership group is ‘OPC’ for 113 files.

• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC-Notice-of-Changes-40-Project-RP0046.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC-Notice-of-Changes-42-Project-RP0079.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_18_Project-MP0114.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_20_Project-RP0037.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_25_Project-RP0061.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_26_Project-RP0068.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_27_Project-RP0072.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_29_Project-RP0069.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_30_Project-RP0032.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_31_Project-RP0040.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_34_Project-RP0043.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_35_Project-RP0044.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/CPC_Notice_of_Changes_37_Project-RP0064.pdf
• https://www.uspto.gov/sites/default/files/documents/archiverpt.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/caa.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/classescombined.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/overview.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/handbook.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1891.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1895.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1897.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1901.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1903.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1905.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1907.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1909.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1910.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1912.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1914.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1916.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1918.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1826.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1828.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1831.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1833.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1835.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1837.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1839.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1840.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1842.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1844.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1846.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1848.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1851.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1853.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1855.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1857.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1859.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1860.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1862.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1864.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1866.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1868.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1871.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1873.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1875.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1877.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1879.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1880.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1882.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1884.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1886.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1888.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1891.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/cur.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1892.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1894.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1896.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1898.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1900.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1902.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1904.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1906.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1908.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1911.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1913.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1915.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1917.pdf
• https://www.uspto.gov/sites/default/files/patents/resources/classification/orders/1919.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1825.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1827.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1829.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1830.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1832.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1834.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1836.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1838.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1841.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1843.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1845.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1847.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1849.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1850.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1852.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1854.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1856.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1858.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1861.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1863.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1865.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1867.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1869.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1870.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1872.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1874.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1876.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1878.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1881.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1883.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1885.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1887.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1889.pdf
• https://www.uspto.gov/sites/default/files/web/offices/opc/documents/1890.pdf