DC

Darwin S. Crouser

HL Hoover Limited: 17 patents #17 of 240Top 8%
Overall (All Time): #280,176 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6189174 Carpet extractor brush assembly Edgar A. Maurer, Timothy B. Hisrich 2001-02-20
6138322 Upright carpet and upholstery extractor Gregg A. McAllise, Jeffery A. Morgan, Fred S. Sindlinger 2000-10-31
6108860 Compact carpet and upholstery extractor Douglas C. Barker, Edgar A. Maurer 2000-08-29
6009593 Carpet extractor brush assembly Edgar A. Maurer, Timothy B. Hisrich 2000-01-04
5943732 Door valve for utility vacuum cleaners Nick M. Bosyj, Donald R. Bowers, Nicholas Koukourakis, Conway Vincent, Richard A. Wareham 1999-08-31
5870798 Compact carpet and upholstery extractor Douglas C. Barker, Edgar A. Maurer 1999-02-16
5867857 Carpet extractor fluid supply system Lynn A. Frederick, Edgar A. Mauer 1999-02-09
5860188 Carpet extractor Edgar A. Maurer, Jeffrey S. Louis 1999-01-19
D398100 Carpet extractor Ronald J. Stephens, Douglas C. Barker, Darwin T. McKnight, Edgar A. Maurer 1998-09-08
5761763 Upright carpet extractor Gregg A. McAllise, Jeffery A. Morgan, Sidney H. Bradd, Lynn A. Frederick, Fred S. Sindlinger 1998-06-09
5615448 Convertible upright carpet extractor Gregg A. McAllise, Jeffery A. Morgan, Fred S. Sindlinger 1997-04-01
5608945 Wet/dry utility vacuum cleaner Nick M. Bosyj, Donald R. Bowers, Nicholas Koukourakis, Richard A. Wareham, Conway Vincent 1997-03-11
5493752 Upright carpet and upholstery extractor Gregg A. McAllise, Jeffery A. Morgan, Fred S. Sindlinger 1996-02-27
5455983 Wet/dry utility vacuum cleaner Nick M. Bosyj, Donald R. Bowers, Nicholas Koukourakis, Richard A. Wareham, Conway Vincent 1995-10-10
5443362 Air turbine Timothy E. Crites, Douglas C. Barker, Joseph W. Clifford 1995-08-22
5134750 Cleaner with conversion valve arrangement Douglass A. King, Edgar A. Maurer, Charles R. Morrow, Raymond L. Lawter 1992-08-04
4888851 Brush mounting arrangement Vincent L. Weber 1989-12-26