Inventor · Arden Hills, MN, US

Walter L. Harmer

15Patents
14h-index
19Co-inventors
75Inventor score

Filing activity: Sep 24, 1979 → Oct 6, 1998

Most-cited inventions

PatentTitleAreaCited byStatus
US5702811A High performance abrasive articles containing abrasive grains and nonabrasive composite grains Emerging Cross-Sectional Technologies 141 Expired
US5908477A Abrasive articles including an antiloading composition Performing Operations; Transporting 124 Expired
US5667542A Antiloading components for abrasive articles Performing Operations; Transporting 122 Expired
US5954844A Abrasive article comprising an antiloading component Performing Operations; Transporting 122 Expired
US5256170A Coated abrasive article and method of making same Emerging Cross-Sectional Technologies 98 Expired
US5061294A Abrasive article with conductive, doped, conjugated, polymer coat and method of making same Emerging Cross-Sectional Technologies 86 Expired
US6039775A Abrasive article containing a grinding aid and method of making the same Performing Operations; Transporting 53 Expired
US5360462A Coated abrasive article Emerging Cross-Sectional Technologies 49 Expired
US5704952A Abrasive article comprising an antiloading component Performing Operations; Transporting 39 Expired
US5840090A High performance abrasive articles containing abrasive grains and nonabrasive composite grains Emerging Cross-Sectional Technologies 29 Expired
US5738695A Abrasive article containing an inorganic phosphate Performing Operations; Transporting 19 Expired
US5914299A Abrasive articles including a polymeric additive Performing Operations; Transporting 19 Expired
US5269821A Coatable mixtures including erodable filler agglomerates, methods of preparing same, abrasive articles incorporating cured versions of same, and methods of making said articles Chemistry; Metallurgy 17 Expired
US5562745A Abrasive articles, methods of making abrasive articles, and methods of using abrasive articles Performing Operations; Transporting 14 Expired
US4273912A Polyurethane floor varnish and floor materials coated therewith Emerging Cross-Sectional Technologies 4 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.