Inventor · disambiguated record
Walter Karpellus
Also filed as: KARPELLUS WALTER
1 granted patent·5 pending applications·29 citations·filing 1988–2013
44Inventor score
Top patents by PatentIndex Score
6 records- 0156US4984937ARock boltMAYREDER KRAUS & CO ING·Filed 1988·Granted Jan 15, 1991·29 cites·7 claims
- 0242US2009133933A1Method and device for drilling, particularly percussion or rotary percussion drilling, a hole in soil or rock materialKARPELLUS WALTER·Filed 2006·Application pending·0 cites
- 0341US2010282513A1Method and device for drilling a hole in ground or rock material and forming a braceBOEHM KARL·Filed 2008·Application pending·0 cites
- 0434US2015204152A1Method for drilling holes in soil or rock material and for fixing an anchor in a borehole and apparatus thereforDYWIDAG SYSTERNS INTERNAT GMBH·Filed 2013·Application pending·0 cites
- 0531US2012247835A1Method for the drilling, in particular percussion or rotary percussion drilling, of holes in soil or rock material and device thereforBOEHM KARL·Filed 2010·Application pending·0 cites
- 0627US2012139237A1Pipe connection and device for forming a pipe connectionBOEHM KARL·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →