Inventor · disambiguated record
Joseph W. Langenfeld
Also filed as: LANGENFELD JOSEPH W
51 granted patents·2 pending applications·1,090 citations·filing 1978–2015
99Inventor score
Files withWESTENDORF MFG44WESTENDORF NEAL W4WESTENDORF MANUFACTURING CO IN2LANGENFELD JOSEPH W1WESTENDORF MFG CO LTD1
Top patents by PatentIndex Score
53 records- 0196US4787811AQuick attach means for attachmentsWESTENDORF MFG·Filed 1983·Granted Nov 29, 1988·60 cites·2 claims
- 0295US8221049B1Independent hydraulic pinching fingers with detachable secondary implementWESTENDORF NEAL W·Filed 2009·Granted Jul 17, 2012·28 cites·19 claims
- 0392US4538955AAdjustable tower for front end tractor loadersWESTENDORF MFG CO LTD·Filed 1983·Granted Sep 3, 1985·57 cites·3 claims
- 0491US8007010B2Hydraulic line attachment device and methodWESTENDORF MFG·Filed 2010·Granted Aug 30, 2011·11 cites·14 claims
- 0590US6663337B2Bale lift device, a front end loader having a bale lift device, and method for moving balesWESTENDORF MFG·Filed 2001·Granted Dec 16, 2003·33 cites·15 claims
- 0689US7717471B2Hydraulic line attachment device and methodWESTENDORF MFG·Filed 2006·Granted May 18, 2010·14 cites·25 claims
- 0789US7021668B2Hydraulic line attachment device and methodWESTENDORF MFG·Filed 2004·Granted Apr 4, 2006·28 cites·16 claims
- 0889US6582177B1Front end loader, tractor, and method for attaching a front end loaderWESTENDORF MFG·Filed 2000·Granted Jun 24, 2003·43 cites·8 claims
- 0989US4915575AMaterial handling attachment for a tractor having a multiple-point hitch assemblyWESTENDORF MFG·Filed 1985·Granted Apr 10, 1990·42 cites·3 claims
- 1089US4797051ALoader device for a tractorWESTENDORF MFG·Filed 1984·Granted Jan 10, 1989·43 cites·5 claims
- 1188US4930974AExtender for a tractor loaderWESTENDORF MFG·Filed 1986·Granted Jun 5, 1990·47 cites·5 claims
- 1288US4606692AQuick-mount loader for articulated tractorsWESTENDORF MFG·Filed 1983·Granted Aug 19, 1986·41 cites·1 claims
- 1387USD459368SFront end loaderWESTENDORF MFG·Filed 2000·Granted Jun 25, 2002·39 cites·1 claims
- 1486US4968213AUniversal tractor loader mountWESTENDORF MFG·Filed 1989·Granted Nov 6, 1990·41 cites·4 claims
- 1586US4859130AMaterial handling attachment for a tractor having a multiple-point hitch assemblyWESTENDORF MANUFACTURING CO IN·Filed 1987·Granted Aug 22, 1989·40 cites·5 claims
- 1685US10240703B2Hydraulic line attachment device and methodWESTENDORF MFG·Filed 2015·Granted Mar 26, 2019·4 cites·14 claims
- 1784US8517428B2Hydraulic line attachment device and methodLANGENFELD JOSEPH W·Filed 2011·Granted Aug 27, 2013·7 cites·20 claims
- 1884US5997237AClam shell bucket and method of operatingWESTENDORF MANUFACTURING CO IN·Filed 1998·Granted Dec 7, 1999·48 cites·10 claims
- 1983US7431554B2Pinching fingers attachment for utility vehiclesWESTENDORF MFG·Filed 2005·Granted Oct 7, 2008·12 cites·14 claims
- 2079USD507004SFront end loaderWESTENDORF MFG·Filed 2004·Granted Jul 5, 2005·19 cites·1 claims
- 2178US4415303AAuger wagonWESTENDORF MFG·Filed 1981·Granted Nov 15, 1983·32 cites·9 claims
- 2278US4266909AMeans for hydraulic self-leveling of a loader bucketWESTENDORF MFG·Filed 1979·Granted May 12, 1981·27 cites·3 claims
- 2377USD529053SFront end loaderWESTENDORF MFG·Filed 2004·Granted Sep 26, 2006·21 cites·1 claims
- 2477USD518075SFront end loaderWESTENDORF MFG·Filed 2005·Granted Mar 28, 2006·19 cites·1 claims
- 2576US7566197B2Independent hydraulic pinching fingers attachment for utility vehiclesWESTENDORF MFG·Filed 2005·Granted Jul 28, 2009·9 cites·19 claims
- 2675US4431207AAutomatic hitch deviceWESTENDORF MFG·Filed 1981·Granted Feb 14, 1984·26 cites·11 claims
- 2774US8287226B1Front end loader attachment and locking mechanismWESTENDORF NEAL W·Filed 2009·Granted Oct 16, 2012·9 cites·23 claims
- 2874US6994511B2Loader assembly, combination motor vehicle and loader assembly, hydraulic cylinders and methods for operating a loader assemblyWESTENDORF MFG·Filed 2003·Granted Feb 7, 2006·25 cites·25 claims
- 2972US7241101B2Double action grab fork and methodWESTENDORF MFG COMPANY INC·Filed 2002·Granted Jul 10, 2007·22 cites·16 claims
- 3072US4266906AMaterials handling device and the method of mounting the same on a tractorWESTENDORF MFG·Filed 1979·Granted May 12, 1981·19 cites·4 claims
- 3170US4897013AElectrically operated material handling attachment for a garden tractor or the likeWESTENDORF MFG·Filed 1988·Granted Jan 30, 1990·34 cites·1 claims
- 3268US7562473B2Material-handling bucket with scraper bladeWESTENDORF MFG·Filed 2004·Granted Jul 21, 2009·15 cites·18 claims
- 3367US6374520B1Bucket for front end loader and method for transportingWESTENDORF MFG·Filed 2000·Granted Apr 23, 2002·15 cites·11 claims
- 3467US4222442AMethod and apparatus for power mounting an implement on a tractorWESTENDORF NEAL W·Filed 1978·Granted Sep 16, 1980·17 cites·12 claims
- 3565US6986634B2Loader/attachment assembly, method for using a loader/attachment assembly, and combination motor vehicle and loader/attachment assemblyWESTENDORF MFG·Filed 2003·Granted Jan 17, 2006·16 cites·14 claims
- 3664US7008162B2Bale lift device, a front end loader having a bale lift device, and method for moving balesWESTENDORF MFG·Filed 2003·Granted Mar 7, 2006·9 cites·12 claims
- 3760US7014411B2Front end loader, tractor, and method for attaching a front end loaderWESTENDORF MFG·Filed 2003·Granted Mar 21, 2006·9 cites·4 claims
- 3860US4621973ATractor loader having multi-adjustment mountingsWESTENDORF MFG·Filed 1985·Granted Nov 11, 1986·17 cites·9 claims
- 3959US4770595AElectrically operated material handling attachment for a garden tractor or the likeWESTENDORF MFG·Filed 1986·Granted Sep 13, 1988·21 cites·2 claims
- 4057US7243593B2Loader assembly, combination motor vehicle and loader assembly, hydraulic cylinders and methods for operating a loader assemblyWESTENDORF MFG·Filed 2005·Granted Jul 17, 2007·4 cites·5 claims
- 4156US9169613B2Hydraulic line attachment device and methodWESTENDORF MFG·Filed 2013·Granted Oct 27, 2015·0 cites·14 claims
- 4256US7326026B2Loader assembly, method for using a loader assembly, and combination motor vehicle and loader assemblyWESTENDORF MFG·Filed 2006·Granted Feb 5, 2008·4 cites·2 claims
- 4355US7455010B2Expanded barrel hydraulic cylinder assemblyWESTENDORF MFG·Filed 2006·Granted Nov 25, 2008·2 cites·15 claims
- 4455US4725189ARear-mounted loader bucket for a tractor including roll-back meansWESTENDORF MFG·Filed 1986·Granted Feb 16, 1988·15 cites·6 claims
- 4553US4753568AMaterial handling attachment for a tractor having a multiple-point hitch assemblyWESTENDORF MFG·Filed 1986·Granted Jun 28, 1988·15 cites·3 claims
- 4652US6994512B2Loader assembly, method for using a loader assembly, and combination motor vehicle and loader assemblyWESTENDORF MFG·Filed 2004·Granted Feb 7, 2006·5 cites·28 claims
- 4749US7160077B2Grapple assembly, a front end loader having a grapple assembly, and method for operating a grapple assemblyWESTENDORF MFG·Filed 2004·Granted Jan 9, 2007·2 cites·13 claims
- 4847US8322969B1Loader assembly and method providing for cantilevered storage of lift armsWESTENDORF NEAL W·Filed 2009·Granted Dec 4, 2012·0 cites·31 claims
- 4947US2006120847A1Bale lift device, a front end loader having a bale lift device, and method for moving balesWESTENDORF MFG·Filed 2005·Application pending·0 cites
- 5044US2006182593A1Front end loader, tractor, and method for attaching a front end loaderWESTENDORF MFG·Filed 2006·Application pending·0 cites
Showing the top 50 of 53 patent records by PatentIndex Score.
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