| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'SPANG') AND (first_name = 'Henry W.') ORDER BY date ASC, patent, type |
Total of 9 patents found where: Last Name is 'SPANG'; First Name is 'Henry W.';
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 |
| 1875 | ||||||
| U | 167,415 | September 7, 1875 | Improvement in Lightning Rods Lightning rod system tied into the existing gutter of a home or building |
SPANG, Henry W. |
Lightning Rod | |
| 1876 | ||||||
| R | 6,835 | January 4, 1876 | Improvement in Lightning Rods Lightning rod system tied into the existing gutter of a home or building (see 167,415) |
SPANG, Henry W. |
Lightning Rod | |
| 1877 | ||||||
| U | 196,493 | October 23, 1877 | Improvement in Lightning Conductors Lighning rod conductor with improved grounding |
SPANG, Henry W. |
Lightning Rod Conductor | |
| 1878 | ||||||
| U | 204,257 | May 28, 1878 | Improvement in Lightning Conductors Sheet metal strips connecting lightning rods to gutters |
SPANG, Henry W. |
Lightning Rod Conductor | |
| 1881 | ||||||
| R | 9,934 | November 15, 1881 | Lightning Rod Reissue of R6,835 which was a reissue of 167,415; Lightning rod system tied into the existing gutter of a home or building |
SPANG, Henry W. |
Lightning Rod | |
| 1883 | ||||||
| U | 273,179 | February 27, 1883 | Lightning Conductor Lightning rod system with an extended earth terminal utilizing a fence |
SPANG, Henry W. |
Lightning Rod | |
| U | 284,082 | August 28, 1883 | Lightning Conductor Lightning rod system of two or more rods and grounded to earth |
SPANG, Henry W. |
Lightning Rod | |
| U | 286,086 | October 2, 1883 | Electrical Conductor for Oil Tanks Lightning protection system for oil tanks (see 167,415) |
SPANG, Henry W. |
Lightning Rod | |
| 1890 | ||||||
| U | 437,526 | September 30, 1890 | Lightning Protector for Oil Tanks Method of protecting oil tanks from lightning |
SPANG, Henry W. |
Lightning Rod | |
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