| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '174') AND (category.subclass = '7') ORDER BY date ASC, patent, type |
Total of 12 patents found where: Class is '174'; Subclass is '7';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1869 | ||||||
| U | 97,496 | December 7, 1869 | Improvement in Lightning Rods and Conductors Grounding tip for lightning rod that retains water to improve conduction to ground |
GARLICK, Theodotus |
Lightning Rod Ground | |
| 1876 | ||||||
| U | 174,451 | March 7, 1876 | Improvement in Lightning Rods Lightning rod ground point made of sheet copper arranged concave or fluted |
WESTON, James H. |
Lightning Rod | |
| U | 175,933 | April 11, 1876 | Improvement in Lightning Rods Lightning rod made of sheet iron folded over wires with sections joined with slip joints |
COLE, Robert S. |
Lightning Rod | |
| U | 183,370 | October 17, 1876 | Improvement in Lightning Rods Lighning rod connecting sleeve to ground point to allow rainwater to wet the ground around the point and flanges to dissipate the charge |
COLE, Robert S. |
Lightning Rod | |
| 1885 | ||||||
| U | 317,908 | May 12, 1885 | Electric Conductor for Wire Fence Lightning protection for wire fence |
WILLIAMSON, Charles |
Lightning Rod Fence | |
| 1891 | ||||||
| U | 452,983 | May 26, 1891 | Grounding Device for Lightning Rods Grounding device for lightning rods |
RADFORD, Cassius M. |
Lightning Rod | |
| 1895 | ||||||
| U | 538,603 | April 30, 1895 | Lightning Rod Hollow lightning rod with cup to divert water into the lower sections of the rod to improve conduction of current to ground |
SIMPSON, Harvey |
Lightning Rod | |
| 1905 | ||||||
| U | 796,760 | August 8, 1905 | Lightning Conductor Lightning rod point with multple projections that are plated with platinum and connected to cone-shaped ground rod made of perforated copper sheet and filled with powdered charcoal and buried in a damp layer of soil |
PRICE, Frank E. MCCULLOUGH, William H. |
Lightning Rod Point | |
| 1909 | ||||||
| U | 940,742 | November 23, 1909 | Water Retaining and Conveying Attachment for Cable Lightning Rods Method of retaining water in the ground to aid in conducting the current to ground |
SIMPSON, Harvey |
Lightning Rod | |
| 1910 | ||||||
| U | 951,411 | March 8, 1910 | Lightning Protector for Buildings Lightning rod system using a hollow metal crest with multiple points and connected to gutters |
ANDERSON, John P. A. |
Lightning Rod Crest | |
| 1911 | ||||||
| U | 984,175 | February 14, 1911 | Lightning Rod Means of directing rain water down into the ground tip and retain the water in the ground to aid in conduction of the current to ground |
YARIAN, Charles E. |
Lightning Rod | |
| 1915 | ||||||
| U | 1,150,907 | August 24, 1915 | Lightning Rod Terminal Lightning rod ground terminal to keep the earth wet to improve conduction to ground |
THOMPSON, George E. |
Lightning Rod | |
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