Inventor · disambiguated record
Henry A. Sygnator
Also filed as: SYGNATOR HENRY A · SYGNATOR HENRY ANTON
24 granted patents·513 citations·filing 1975–1997
97Inventor score
Top patents by PatentIndex Score
24 records- 0181US5489179AFastener and building assembly comprising workpiece, substrate, and fastenerILLINOIS TOOL WORKS·Filed 1994·Granted Feb 6, 1996·47 cites·23 claims
- 0278US5741104ASteel fastener having grooved shankILLINOIS TOOL WORKS·Filed 1997·Granted Apr 21, 1998·56 cites·12 claims
- 0378US4749322AAluminum roof panel fastenerILLINOIS TOOL WORKS·Filed 1986·Granted Jun 7, 1988·44 cites·3 claims
- 0478US3982464ADrilling and reamingILLINOIS TOOL WORKS·Filed 1975·Granted Sep 28, 1976·37 cites·3 claims
- 0576US4749319AAnti-stripping sheet metal screwILLINOIS TOOL WORKS·Filed 1986·Granted Jun 7, 1988·40 cites·5 claims
- 0675US4179976AExtruding and tapping screw and blank for manufacture of such screwILLINOIS TOOL WORKS·Filed 1978·Granted Dec 25, 1979·33 cites·6 claims
- 0765US4583898ADrill screw and cutters for making sameILLINOIS TOOL WORKS·Filed 1983·Granted Apr 22, 1986·25 cites·7 claims
- 0864US4295351ASelf-tapping stainless steel screw and method for producing sameILLINOIS TOOL WORKS·Filed 1979·Granted Oct 20, 1981·12 cites·5 claims
- 0963US5154670AApparatus for forming a wire nailILLINOIS TOOL WORKS·Filed 1991·Granted Oct 13, 1992·31 cites·19 claims
- 1063US4457654ATool gripping fastenerILLINOIS TOOL WORKS·Filed 1982·Granted Jul 3, 1984·23 cites·9 claims
- 1162US5056976AWire nail, strip of collated wire nails, and related apparatusILLINOIS TOOL WORKS·Filed 1990·Granted Oct 15, 1991·31 cites·24 claims
- 1257US5642974AFastener and building assembly comprising workpiece, substrate, and fastenerILLINOIS TOOL WORKS·Filed 1995·Granted Jul 1, 1997·21 cites·2 claims
- 1357US5058228AMachine and methods for collating wire nails having shank keywaysILLINOIS TOOL WORKS·Filed 1990·Granted Oct 22, 1991·18 cites·20 claims
- 1456US5060797ACollated nails having tape recessesILLINOIS TOOL WORKS·Filed 1990·Granted Oct 29, 1991·22 cites·18 claims
- 1548US5533379AMethod of forming a head on a fastenerILLINOIS TOOL WORKS·Filed 1995·Granted Jul 9, 1996·11 cites·16 claims
- 1648US4927309AWire nailSYGNATOR HENRY A·Filed 1989·Granted May 22, 1990·17 cites·13 claims
- 1748US4145862ARotary sheet metal fastener and fastening systemILLINOIS TOOL WORKS·Filed 1978·Granted Mar 27, 1979·12 cites·21 claims
- 1847US5476351AMethod and apparatus for forming a head on a fastener and a fastener formed therefromILLINOIS TOOL WORKS·Filed 1993·Granted Dec 19, 1995·10 cites·14 claims
- 1945US4565475ADrill point milling machine and methodILLINOIS TOOL WORKS·Filed 1983·Granted Jan 21, 1986·8 cites·6 claims
- 2040US4395173ADrill screw with protective burrsILLINOIS TOOL WORKS·Filed 1981·Granted Jul 26, 1983·6 cites·4 claims
- 2134US3992740AScrew blank receiving and orienting colletILLINOIS TOOL WORKS·Filed 1975·Granted Nov 23, 1976·3 cites·9 claims
- 2231US4532663AMethod of manufacturing a drill screwILLINOIS TOOL WORKS·Filed 1983·Granted Aug 6, 1985·3 cites·5 claims
- 2331US4269902AExtruding and tapping screw and blank for manufacture of such screwILLINOIS TOOL WORKS·Filed 1979·Granted May 26, 1981·3 cites·8 claims
- 2430US4577359AMethod of manufacturing a drill screwILLINOIS TOOL WORKS·Filed 1985·Granted Mar 25, 1986·0 cites·5 claims
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