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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (residence = 'San Francisco, CA') ORDER BY date ASC, patent, type

Total of 18 patents found where: Residence is 'San Francisco, CA';

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T / S Patent Date Description Patentee Category Assigned To
 1877
U Specimen known 187,183 February 6, 1877 Improvement in Telegraph Insulators
CD 130.2, wire groove composed of a series of projections
SEILER, Paul
Insulator 1/2 to Joseph Herz
 1884
U 297,699 April 29, 1884 Pin for Electric Insulators
Pin with thimble of soft metal mounted on end of metal pin
KLEIN, John M.
Pin  
 1887
U 373,393 November 15, 1887 Tool for Cutting Seats for Insulator Attachments for Musical Instruments
Tool for cutting circular slot in piano legs in order to insert the piano insulator.
DEWING, James
BENNETT, Delbert F.
Piano Insulator  
 1896
U 573,966 December 29, 1896 Insulator Hanger
Bracket for knobs
DUNCAN, Robert
Bracket  
 1897
U 579,725 March 30, 1897 Insulator and Holder for Electric Railways
Trolley hanger insulator suspended from a cable. It is composed of an inverted insulator cup and a metal cover.
KEITHLY, Willie C.
Trolley Hanger  
 1899
U Specimen known 634,568 October 10, 1899 Insulating Support for Electric Wires
CD 309, U-416, under-crossarm type for better protection from rain
BEAL, Carroll N.
Insulator  
 1905
U 805,788 November 28, 1905 Electric Strain Insulator
Porcelain or glass strain insulator in compression
FOSTER, Samuel L.
Strain  
 1906
U 834,567 October 30, 1906 Insulator
Self-tying twist lock type
FALKENBERG, Richard A.
SIMON, Solomon S.
Self-tying Twist  
U Specimen known 838,163 December 11, 1906 High Tension Insulator
Multipart with multiple petticoats under skirts (M-4325C, M-4415, M-4600) (see ID 5166)
BAUM, Frank G.
Insulator  
 1908
U 875,978 January 7, 1908 Electric Switch
High-tension switch supported on several multipart insulators.
BAUM, Frank George
Switch  
U Specimen known 882,803 March 24, 1908 Insulator
CD 211
STORROR, Leonard W.
Insulator  
 1913
U 1,080,257 December 2, 1913 Insulator
Wall tube with metal clip
BRUCHSALER, Karl
Wall Tube  
 1929
U 1,728,522 September 17, 1929 Insulator for High Voltage Systems
Suspension disk with strips of high resistance conductive material embedded in the upper surface to produce a uniform distribution of voltage across each disk in a string
BAUM, Frank G.
Suspension Westinghouse Electric & Mfg. Co.
 1930
U 1,742,628 January 7, 1930 High Tension Insulator
Fog type suspension & pin-type insulator with external petticoats (see 1,858,611) Patent was owned by Lapp Insulator Co.
BARFOED, Svend
Fog Type  
U 1,768,948 July 1, 1930 High Voltage Insulator
Suspension insulator
BAUM, Frank G.
Suspension Westinghouse Electric & Mfg. Co.
 1931
U 1,811,530 June 23, 1931 Insulating Device
Ribbed suspension insulator with deep hollow interior to receive linkage hardware to connect the next insulator
BAUM, Frank G.
Suspension Westinghouse Electric & Mfg. Co.
 1932
U 1,858,611 May 17, 1932 High Tension Insulator
Fog type suspension by Lapp (see 1,742,628) Patent was owned by Lapp Insulator Co.
BARFOED, Svend
Fog Type  
 1943
U 2,331,041 October 5, 1943 Method of Surface Treating Glass Containers
Treatment of interior surfaces of glass block
NOBLE, Burton A.
OI Owens-Illinois Glass Co.

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