WH

Walter L. Harmer

3M: 14 patents #1,097 of 11,543Top 10%
Overall (All Time): #328,196 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6039775 Abrasive article containing a grinding aid and method of making the same Kwok-Lun Ho, Robert A. Follensbee, Mary Lou Morris 2000-03-21
5954844 Abrasive article comprising an antiloading component Kam W. Law, Alan R. Kirk, Ernest L. Thurber 1999-09-21
5914299 Abrasive articles including a polymeric additive James P. DiZio, Alan R. Kirk 1999-06-22
5908477 Abrasive articles including an antiloading composition Don H. Kincaid, Alan R. Kirk, Eric G. Larson 1999-06-01
5840090 High performance abrasive articles containing abrasive grains and nonabrasive composite grains Kwok-Lun Ho 1998-11-24
5738695 Abrasive article containing an inorganic phosphate Kwok-Lun Ho 1998-04-14
5704952 Abrasive article comprising an antiloading component Kam W. Law, Alan R. Kirk, Ernest L. Thurber 1998-01-06
5702811 High performance abrasive articles containing abrasive grains and nonabrasive composite grains Kwok-Lun Ho 1997-12-30
5667542 Antiloading components for abrasive articles Kam W. Law 1997-09-16
5562745 Abrasive articles, methods of making abrasive articles, and methods of using abrasive articles John J. Gagliardi, Jason A. Chesley, Charles H. Houck, Gary L. Olson 1996-10-08
5360462 Coated abrasive article Robert J. DeVoe, Eric G. Larson, Don H. Kincaid, Peggy S. Willett, Jerry W. Williams 1994-11-01
5269821 Coatable mixtures including erodable filler agglomerates, methods of preparing same, abrasive articles incorporating cured versions of same, and methods of making said articles Harvey J. Helmin 1993-12-14
5256170 Coated abrasive article and method of making same Robert J. DeVoe, Eric G. Larson, Don H. Kincaid, Peggy S. Willett, Jerry W. Williams 1993-10-26
5061294 Abrasive article with conductive, doped, conjugated, polymer coat and method of making same Leif Christensen, Gary J. Drtina, Harvey J. Helmin 1991-10-29
4273912 Polyurethane floor varnish and floor materials coated therewith 1981-06-16