Dennis J. Kool has been granted 18 US patents while listed as an inventor at Amway . The first was granted in 1988 and the most recent in August 2004. Dennis J. Kool ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Dennis J. Kool in Kentwood, MI, US.
Patents per Year Patents granted per year, 1988 to 2004 Bar chart with a peak of 3 patents in 1997. peak 3 1988: 1 patents 1988 1992: 2 patents 1993: 1 patents 1993 1994: 2 patents 1995: 2 patents 1995 1996: 1 patents 1997: 3 patents 1997 1998: 1 patents 1999: 1 patents 1999 2001: 1 patents 2003: 1 patents 2003 2004: 2 patents 2004
Issued Patents All Time
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Showing 1–18 of 18 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6773587 Point-of-use water treatment system James A. Woodard, Jr. , Rick G. Good 2004-08-10
6716343 Point-of-use water treatment system Roy M. Taylor , James A. Woodard, Jr. 2004-04-06
6533930 Point-of-use water treatment system Roy M. Taylor , James A. Woodard, Jr. , Dale Aberegg , Greg Snyder , Dan Goetz 2003-03-18
6245229 Point-of-use water treatment system Roy M. Taylor , James A. Woodard, Jr. , Dale Aberegg , Greg Snyder , Dan Goetz 2001-06-12
D414240 Water treatment system Matthew H. Hess , John M. Stark , Donald J. Staufenberg , Dale Aberegg , Brian S. Bacon 1999-09-21
5853572 Home water purification system Roy W. Kuennen , Robin M. Dykhouse , Ronald C. Markham , Bradley J. Pippel , Dennis E. Kidd +1 more 1998-12-29
$8,165,000
5698091 Home water purification system with filter end of life monitor Roy W. Kuennen , Robin M. Dykhouse , Ronald C. Markham , Bradley J. Pippel , Dennis E. Kidd +1 more 1997-12-16
$9,385,000
5693226 Apparatus for demonstrating a residential point of use water treatment system — 1997-12-02
$9,969,000
D380524 Water purifier — 1997-07-01
5536395 Home water purification system with automatic disconnecting of radiant energy source Roy W. Kuennen , Robin M. Dykhouse , Ronald C. Markham , Bradley J. Pippel , Dennis E. Kidd +1 more 1996-07-16
$13,209,000
5393419 Ultraviolet lamp assembly for water purification Merlin G. Tiede , Kenneth E. Lew 1995-02-28
$18,931,000
D355700 Water purifier housing — 1995-02-21
5347865 Measuring scoop with molded reusable fit clip Patrick E. Mulry , Mike B. Tyberghein , Donald S. Gura , Jeffrey D. Plyler 1994-09-20
$20,989,000
5344558 Water filter cartridge — 1994-09-06
$21,896,000
D339991 Measuring scoop Patrick E. Mulry , Mike B. Tyberghein , Donald S. Gura , Jeffrey D. Plyler 1993-10-05
D331023 Measuring scoop Patrick E. Mulry 1992-11-17
5128034 Pressure vessel for housing a water filter — 1992-07-07
D297159 Combined water purifier and support bracket — 1988-08-09