| Number | Patent Name | Inventor | Date Filed | Date issued | Location |
| US0544844 | Carbon brush holder for Dynamo Electric Machines | Churchward, Alexander | 5/14/1891 | 8/20/1895 | Brooklyn, New York |
| US0593716 | Alternating Current Motor | Churchward, Alexander | 7/1/1896 | 11/16/1897 | Brooklyn, New York |
| US0687991 | Dynamo Frame | Churchward, Alexander | 6/12/1899 | 12/3/1901 | Chicago, Illinois |
| US0687992 | Dynamo Electric Machinery | Churchward, Alexander | 12/18/1899 | 12/3/1901 | Chicago, Illinois |
| US0707389 | Synchronous Alternating Current Motor | Churchward, Alexander | 10/1/1898 | 8/19/1902 | Fort Wayne, Indiana |
| US0707390 | Synchronous Alternating Current Motor | Churchward, Alexander | 01/11/1899 | 8/19/1902 | Fort Wayne, Indiana |
| US0708025 | Rotary Transformer | Churchward, Alexander | 6/19/1899 | 9/2/1902 | Chicago, Illinois |
| US0710425 | Frame for dynamo-electric machines | Churchward, Alexander | 9/12/1896 | 10/7/1902 | Brooklyn, New York |
| US0713603 | Dynamo Electric Machine | Churchward, Alexander | 1/2/1900 | 11/18/1902 | Chicago, Illinois |
| US0713604 | Dynamo Electric Machine | Churchward, Alexander | 1/2/1900 | 11/18/1902 | Chicago, Illinois |
| US0713605 | Transformer | Churchward, Alexander | 11/13/1899 | 11/18/1902 | Chicago, Illinois |
| US0723989 | Pole shoe for dynamo electric machine | Churchward, Alexander | 8/23/1901 | 3/31/1903 | Chicago, Illinois |
| US0730343 | Alternating current motor | Churchward, Alexander | 3/29/1897 | 6/9/1903 | Brooklyn, New York |
| US0732171 | Brush holder | Churchward, Alexander | 11/13/1899 | 6/30/1903 | Chicago, Illinois |
| US0745325 | Alternating Current Motor | Churchward, Alexander | 3/29/1897 | 12/1/1903 | Brooklyn, New York |
| US0745326 | Alternating Current Motor | Churchward, Alexander | 3/29/1897 | 12/1/1903 | Brooklyn, New York |
| US0745327 | Anti hunting device | Churchward, Alexander | 6/19/1902 | 12/1/1903 | New York, New York |
| US0745957 | Alternating Current Motor | Churchward, Alexander | 4/27/1903 | 12/1/1903 | New York, New York |
| US0766991 | Propelling railway-oars by synchronous electrical motor | Churchward, Alexander | 10/12/1902 | 8/9/1904 | New York, New York |
| US0771533 | Electric Railway | Churchward, Alexander | 2/20/1903 | 10/4/1904 | New York, New York |
| US0778222 | Automatic current regulator for electric motors | Churchward, Alexander | 7/16/1903 | 12/27/1904 | New York, New York |
| US0791440 | Method of operating alternating current motors | Churchward, Alexander | 10/31/1903 | 5/30/1905 | New York, New York |
| US0796702 | Pole piece | Churchward, Alexander | 10/26/1902 | 8/8/1905 | New York, New York |
| US0805263 | Time limit device for controllers | Churchward, Alexander | 10/10/1903 | 11/21/1905 | New York, New York |
| US0812726 | Locking device for automobiles | Churchward, Alexander | 6/30/1904 | 2/13/1906 | New York, New York |
| US0835401 | Protective device for automobile motors | Churchward, Alexander | 6/12/1905 | 11/6/1906 | Schenectady, New York |
| US0849051 | Power Transmission Device | Churchward, Alexander | 9/6/1902 | 4/2/1907 | Pelliani, New York |
| US0907738 | Pole-piece for dynamo-electric machines | Churchward, Alexander | 8/23/1901 | 12/28/1908 | Chicago, Illinois |
| US0996975 | Rectifier system | Churchward, Alexander | 10/14/1907 | 7/4/1911 | New York, New York |
| US1003431 | Systems of Motor Control | Churchward, Alexander | 4/9/1909 | 9/19/1911 | New York, New York |
| US1091632 | System of Vehicle Propulsion | Churchward, Alexander | 3/10/1910 | 3/31/1914 | New York, New York |
| US1094778 | Vapor electric apparatus | Churchward, Alexander | 1/18/1904 | 4/28/1914 | New York, New York |
| US1152878 | Electric lighting and battery charge system for vehicles | Churchward, Alexander | 1/2/1914 | 9/7/1915 | Boston, Massachusetts |
| US1153372 | Power transmission means for operating dynamos | Churchward, Alexander | 1/2/1914 | 9/14/1915 | Boston, Massachusetts |
| US1247793 | Starting and generating system for automobiles | Churchward, Alexander | 10/1/1915 | 11/27/1917 | Boston, Massachusetts |
| US1287883 | Power transmission | Churchward, Alexander | 12/17/1918 | Boston, Massachusetts | |
| US1350703 | Starting mechanism for internal-combustion engines | Churchward, Alexander | 5/28/1919 | 8/24/1920 | New York, New York |
| US1355124 | Electric-welding method and apparatus | Churchward, Alexander | 2/18/1920 | 10/12/1920 | New York, New York |
| US1370286 | Electrical welding apparatus | Churchward, Alexander | 6/24/1919 | 3/1/1921 | New York, New York |
| US1397361 | Pressure variable resistance | Churchward, Alexander | 5/7/1920 | 11/15/1921 | New York, New York |
| US1403231 | Electrical connection | Churchward, Alexander | 6/19/1920 | 1/10/1922 | New York, New York |
| US1413390 | Pressure variable resistance | Churchward, Alexander | 6/24/1919 | 4/18/1922 | New York, New York |
| US1416449 | Electric-arc welding | Churchward, Alexander | 2/18/1920 | 5/16/1922 | New York, New York |
| US1435914 | Electrical welding apparatus | Churchward, Alexander | 3/19/1919 | 11/21/1922 | New York, New York |
| US1436152 | Electrical-energy-translating apparatus | Churchward, Alexander | 4/28/1919 | 11/21/1922 | New York, New York |
| US1552418 | Electrical welding method and apparatus | Churchward, Alexander | 4/22/1919 | 9/8/1925 | New York, New York |
| US1664022 | Electric welding apparatus | Churchward, Alexander | 2/17/1927 | 3/27/1928 | New York, New York |
| US1667244 | Electric-welding apparatus | Churchward, Alexander | 11/8/1926 | 4/24/1928 | New York, New York |
| US1720664 | Electric welding apparatus | Churchward, Alexander | 11/8/1926 | 7/16/1929 | New York, New York |
| US1853039 | Uni-control tuning apparatus | Churchward, Alexander | 10/9/1925 | 4/12/1932 | New York, New York |
| US1862922 | Welding generator | Churchward, Alexander | 1/8/1930 | 6/14/1932 | New York, New York |
| US1863833 | Welding apparatus | Churchward, Alexander | 4/17/1930 | 6/21/1932 | New York, New York |
| US1882063 | Welding apparatus | Churchward, Alexander | 4/17/1930 | 10/11/1932 | New York, New York |
| US1887496 | Welding apparatus | Churchward, Alexander | 4/17/1930 | 11/15/1932 | New York, New York |
| US1910825 | Welding generator | Churchward, Alexander | 2/7/1930 | 5/23/1933 | South Orange, New Jersey |
| US1961197 | Welding apparatus | Churchward, Alexander | 8/19/1932 | 6/5/1934 | South Orange, New Jersey |