Assignee
HWH CORP
US·38 granted patents·1,393 citations·filing 1975–2018
Top patents by PatentIndex Score
38 records- 0196US9994141B1Retractable platform and staircase for a recreational vehicleHWH CORP·Filed 2017·Granted Jun 12, 2018·23 cites·9 claims
- 0296US4165861AVehicle leveling systemHWH CORP·Filed 1978·Granted Aug 28, 1979·77 cites·13 claims
- 0395US4061309AVehicle leveling system and device thereforHWH CORP·Filed 1976·Granted Dec 6, 1977·65 cites·19 claims
- 0492US7380854B1Device for removing water and other debris from the roof of an expandable room on a vehicleHWH CORP·Filed 2006·Granted Jun 3, 2008·28 cites·12 claims
- 0592US4597584AAutomatic levelling systemHWH CORP·Filed 1984·Granted Jul 1, 1986·77 cites·63 claims
- 0690US5547040AAutomatic step for recreational vehiclesHWH CORP·Filed 1995·Granted Aug 20, 1996·192 cites·3 claims
- 0790US4746133AAutomatic leveling systemHWH CORP·Filed 1987·Granted May 24, 1988·124 cites·47 claims
- 0889US7717485B1Universal room extension for expandable roomsHWH CORP·Filed 2007·Granted May 18, 2010·23 cites·18 claims
- 0987US9725042B1Retractable staircase for a recreational vehicleHWH CORP·Filed 2016·Granted Aug 8, 2017·7 cites·14 claims
- 1087US6708454B1Pivot connector for extendable roomsHWH CORP·Filed 2002·Granted Mar 23, 2004·40 cites·5 claims
- 1186US7857361B1Coupler assemblyHWH CORP·Filed 2007·Granted Dec 28, 2010·23 cites·10 claims
- 1286US6067756ASpace saving room extenderHWH CORP·Filed 1998·Granted May 30, 2000·57 cites·8 claims
- 1384US6729670B1Linkage for expandable roomsHWH CORP·Filed 2002·Granted May 4, 2004·36 cites·6 claims
- 1484US6568734B2Straight motion parallelogram linkageHWH CORP·Filed 2001·Granted May 27, 2003·36 cites·4 claims
- 1583US11007944B1Automatic railing for a retractable stairwayHWH CORP·Filed 2018·Granted May 18, 2021·8 cites·17 claims
- 1683US7621587B1Hydraulic slidable storage for a recreational vehicleHWH CORP·Filed 2007·Granted Nov 24, 2009·16 cites·16 claims
- 1782US4743037AAutomatic levelling systemHWH CORP·Filed 1986·Granted May 10, 1988·49 cites·30 claims
- 1880US7685927B1Hydraulic synchronizing cylinderHWH CORP·Filed 2007·Granted Mar 30, 2010·9 cites·9 claims
- 1980US6679541B1Chain driven linkage assemblies for room extensionsHWH CORP·Filed 2003·Granted Jan 20, 2004·29 cites·7 claims
- 2078US6684138B1Dynamic platform leveling systemHWH CORP·Filed 2002·Granted Jan 27, 2004·25 cites·5 claims
- 2178US6052952AFlat floor room extensionHWH CORP·Filed 1999·Granted Apr 25, 2000·62 cites·6 claims
- 2278US5908215APivotal extension apparatus for motor homes and recreational vehiclesHWH CORP·Filed 1998·Granted Jun 1, 1999·37 cites·2 claims
- 2378US4380258ALog splitterHWH CORP·Filed 1981·Granted Apr 19, 1983·31 cites·8 claims
- 2478US3943637AApparatus for treating particulate materialHWH CORP·Filed 1975·Granted Mar 16, 1976·25 cites·15 claims
- 2577US7806417B1Height averaging means for use with a motor vehicle suspension control systemHWH CORP·Filed 2008·Granted Oct 5, 2010·12 cites·8 claims
- 2677US6905154B1Universal room extensionHWH CORP·Filed 2004·Granted Jun 14, 2005·25 cites·12 claims
- 2777US4148125AProcess of and device for seating a ring type seal in a grooveHWH CORP·Filed 1978·Granted Apr 10, 1979·26 cites·21 claims
- 2875US6658798B1Floor slot room extenderHWH CORP·Filed 2001·Granted Dec 9, 2003·28 cites·8 claims
- 2974US7603942B1Synchronization cylinder having chambers with different volumesHWH CORP·Filed 2006·Granted Oct 20, 2009·7 cites·1 claims
- 3074US7419202B1Seal for expandable roomsHWH CORP·Filed 2005·Granted Sep 2, 2008·10 cites·7 claims
- 3174US5983576AExtendable roomHWH CORP·Filed 1997·Granted Nov 16, 1999·42 cites·5 claims
- 3271US6665597B1Automatic suspension control system for motor vehiclesHWH CORP·Filed 2003·Granted Dec 16, 2003·21 cites·13 claims
- 3370US4655269APortable log splitterHWH CORP·Filed 1986·Granted Apr 7, 1987·29 cites·7 claims
- 3469US6533338B1Vertical arm flat floor extension and vertical arm housingHWH CORP·Filed 2001·Granted Mar 18, 2003·19 cites·16 claims
- 3569US5772270APivotal extension apparatus for motor homes and recreational vehiclesHWH CORP·Filed 1995·Granted Jun 30, 1998·29 cites·8 claims
- 3661US6345855B2Level floor room extensionHWH CORP·Filed 1999·Granted Feb 12, 2002·25 cites·10 claims
- 3757US6894447B1Electrically actuated slide room extensionHWH CORP·Filed 2002·Granted May 17, 2005·13 cites·5 claims
- 3835US6186692B1Locking mechanism for expandable roomsHWH CORP·Filed 1998·Granted Feb 13, 2001·8 cites·7 claims
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