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Patent#	USPTO	Date	Year	Inventor	Patent Title	Comments
83,685	USPTO	Nov 3	1868	Bicknell	Sash-Cord Guide	Mistaken for insulator
105,252	USPTO	Jul 12	1870	Robertson	Battery Insulator	Earliest style of battery rest
920,105	USPTO	May 4	1909	Backus	Lock and Check Hook	Cast iron parts proved fragile
1,021,343	USPTO	Mar 26	1912	Tingley	Locking Clamp	Predecessor to the Backus Novelty Locking Clamp
1,156,739	USPTO	Oct 12	1915	Backus	Locking Clamp	Backus's Universal Locking Clamp
1,187,378	USPTO	Jun 13	1916	Osborn	Sliding Shoe for Furniture	Mistaken for battery rest insulator
1,194,957	USPTO	Aug 15	1916	Cochrane	Insulator	"Cochrane Bells" multipart suspension insulator
1,304,623	USPTO	May 27	1919	Sullivan & Taylor	Glass	Corning Pyrex glass formula
1,373,112	USPTO	Mar 29	1921	Backus	Check Lock	Improved sheet-metal version of No. 920,105
1,487,355	USPTO	Mar 18	1924	Overmyer	Drawer Knob	Solid glass threaded drawer knob w/sleeve
1,623,301	USPTO	Apr 5	1927	Brenner	Heat-Resisting Glass	Fry Foval boro-silicate, heat-resisting opalescent glass formula and process
2,734,098	USPTO	Feb 7	1956	Bonnesen	Transposition Insulator	CD 303.2 Armstrong TW