Inventor · disambiguated record
Volker Guelck
Also filed as: GUELCK VOLKER
11 granted patents·172 citations·filing 1985–2019
90Inventor score
Files withGUELCK VOLKER3PLY GEM IND INC3CITRULLO JOSEPH1CRYSTAL WINDOW & DOOR SYSTEMS1ILLINOIS TOOL WORKS1
Top patents by PatentIndex Score
11 records- 0183US10760317B2Casement window operatorPLY GEM IND INC·Filed 2018·Granted Sep 1, 2020·6 cites·19 claims
- 0277US4674777ACam lockGUELCK VOLKER·Filed 1985·Granted Jun 23, 1987·45 cites·16 claims
- 0376US10787849B1Sash balance for vertical slider windowPLY GEM IND INC·Filed 2019·Granted Sep 29, 2020·4 cites·21 claims
- 0472US6042314AFastener and method of operation thereof for installing a thin layer of material at an adjustable distance from a supportWINDWARE INC·Filed 1996·Granted Mar 28, 2000·53 cites·17 claims
- 0559US6679001B1Window system with locking deviceCRYSTAL WINDOW & DOOR SYSTEMS·Filed 2002·Granted Jan 20, 2004·14 cites·7 claims
- 0649US11591834B2Sash lock capable of bi-directional engagementPLY GEM IND INC·Filed 2019·Granted Feb 28, 2023·0 cites·14 claims
- 0746US5492377AWindow lockFiled 1994·Granted Feb 20, 1996·12 cites·16 claims
- 0840US4683675AShoe for a closureILLINOIS TOOL WORKS·Filed 1985·Granted Aug 4, 1987·12 cites·20 claims
- 0938US4756135AWindow frame assemblyCITRULLO JOSEPH·Filed 1987·Granted Jul 12, 1988·19 cites·1 claims
- 1029US4941287AWindow having pivotal stepGUELCK VOLKER·Filed 1989·Granted Jul 17, 1990·4 cites·19 claims
- 1128US4656782AHorizontal slider closureGUELCK VOLKER·Filed 1985·Granted Apr 14, 1987·3 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →