Inventor · disambiguated record
Norman P. Gruczelak
Also filed as: GRUCZELAK NORMAN P
4 granted patents·3 pending applications·104 citations·filing 1977–2011
79Inventor score
Files withONSITE WASHOUT CORP3DMA SYSTEMS CORP1LEONARDICH ERNEST KIM1MINNESOTA MINING & MFG1OKIDATA CORP1
Top patents by PatentIndex Score
7 records- 0189US4419703ADisc cartridge loading mechanismDMA SYSTEMS CORP·Filed 1981·Granted Dec 6, 1983·51 cites·12 claims
- 0283US4339777AAir-flow system for a disk fileMINNESOTA MINING & MFG·Filed 1980·Granted Jul 13, 1982·30 cites·9 claims
- 0372US4131921AHead positioning system for disc filesOKIDATA CORP·Filed 1977·Granted Dec 26, 1978·17 cites·5 claims
- 0471US8020569B2Portable concrete washout facilityONSITE WASHOUT CORP·Filed 2008·Granted Sep 20, 2011·6 cites·13 claims
- 0553US2009178974A1Concrete pump washout systems and methodsONSITE WASHOUT CORP·Filed 2009·Application pending·0 cites
- 0645US2011303243A1Portable concrete washout facilityLEONARDICH ERNEST KIM·Filed 2011·Application pending·0 cites
- 0741US2007256707A1Transportable concrete pump washout systems and methodsONSITE WASHOUT CORP·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →