|
| US4231569 | 2 Jun 1978 | 4 Nov 1980 | | Exercising device |
| US4351526 | 5 Mar 1980 | 28 Sep 1982 | | Dumbells |
| US4482151 | 1 Jun 1983 | 13 Nov 1984 | Questor Corp. | Exercising device |
| US4743017 | 20 Aug 1985 | 10 May 1988 | | Dumbbell attachment |
| US5286244 | 6 Jan 1992 | 15 Feb 1994 | Safety Sports, Ltd. | Multi-functional hand weight |
| US5637064 | 13 Oct 1995 | 10 Jun 1997 | Intellbell Ventures | Adjustable dumbbell |
| US5769762 | 3 Jul 1996 | 23 Jun 1998 | Intellbell, Inc. | Exercise weight system |
| US5779604 | 4 Mar 1996 | 14 Jul 1998 | Intellbell Ventures | Adjustable dumbbell |
| US6436016 | 18 Sep 2000 | 20 Aug 2002 | | Dumbbell suspension system |
| US7052445 | 12 Apr 2004 | 30 May 2006 | Ira Ekhaus | Adjustable exercise bell |
| US7077790 | 13 Apr 2004 | 18 Jul 2006 | | Adjustable weight exercise methods and apparatus |
| US7077791 | 18 Apr 2002 | 18 Jul 2006 | Mautilus, Inc. | Weight selection methods and apparatus |
| US7261678 | 5 Jun 2003 | 28 Aug 2007 | Nautilus, Inc. | Adjustable dumbbell system |
| US7381157 | 13 Dec 2005 | 3 Jun 2008 | Diani, LLC | Exercise device and method |
| US7491157 | 3 Mar 2008 | 17 Feb 2009 | Asia Regent Limited | Weight-adjustable dumbbell |
| US7534199 | 19 Jun 2006 | 19 May 2009 | Nautilus, Inc. | Weight selection methods and apparatus |
| US7553265 | 19 May 2006 | 30 Jun 2009 | Nautilus, Inc. | Adjustable dumbbell system |
| US7563208 | 22 Oct 2008 | 21 Jul 2009 | | Adjustable kettlebell |
| US7614982 | 24 Aug 2007 | 10 Nov 2009 | Nautilus, Inc. | Adjustable dumbbell system |
| US7731640 | 22 Jan 2009 | 8 Jun 2010 | | Adjustable kettlebell |
| US7775947 | 31 Jul 2007 | 17 Aug 2010 | PowerBlock Holdings, Inc. | Selectorized dumbbell having shock absorbing system and weight plates with an elastomer encasement |
| US7811212 | 28 Jan 2009 | 12 Oct 2010 | | Adjustable kettlebell |
| US7850581 | 19 Jun 2010 | 14 Dec 2010 | PowerBlock Holdings, Inc. | Selectorized dumbbell having shock absorbing nested weights and a shock absorbing selector |
| US7854693 | 19 Jun 2010 | 21 Dec 2010 | Power Block Holdings, Inc. | Selectorized dumbbell having shock absorbing system comprising flexible and resilient rails in the weights |
| US7857735 | 19 Jun 2010 | 28 Dec 2010 | Power Block Holdings, Inc. | Selectorized dumbbell having a selector comprising a pin with flexible connecting prong(s) |
| US7883452 | 7 May 2010 | 8 Feb 2011 | | Kettlebell having pivotal handle |
| US7918772 | 19 Jun 2010 | 5 Apr 2011 | PowerBlock Holdings, Inc. | Selectorized dumbbell having a selector comprising a pin having fork-shaped connecting prong(s) |
| US7942792 | 14 Dec 2009 | 17 May 2011 | OK-1 Manufacturing Company | Exercise apparatus |
| US7976443 | 6 Nov 2009 | 12 Jul 2011 | | Adjustable weight kettlebell |
| US7981013 | 6 Nov 2009 | 19 Jul 2011 | | Kettlebell apparatus |
| US8002678 | 16 Oct 2009 | 23 Aug 2011 | | Weight selection methods and apparatus |
| US8012069 | 30 Jul 2010 | 6 Sep 2011 | Power Block Holdings, Inc. | Selectorized dumbbell having or convertible into kettlebell configuration |
| US8021282 | 5 Jun 2008 | 20 Sep 2011 | Finger Lakes Intellectual Property LLC | Exercise device |
| US8033965 | 16 Mar 2010 | 11 Oct 2011 | | Adjustable weight kettlebell apparatus |
| US8241189 | 5 Oct 2009 | 14 Aug 2012 | | Dumbbell |
| USD508628 | 31 Jul 2002 | 23 Aug 2005 | Nautilus, Inc. | Adjustable dumbbell support base |
| USD522594 | 13 Oct 2004 | 6 Jun 2006 | | Adjustable kettlebell |
| USD522595 | 13 Oct 2004 | 6 Jun 2006 | | Adjustable kettlebell |
| USD528173 | 16 Aug 2004 | 12 Sep 2006 | Nautilus, Inc. | Adjustable dumbbell base |
| USD528611 | 16 Aug 2004 | 19 Sep 2006 | Nautilus, Inc. | Adjustable dumbbell |
| USD540405 | 31 Jul 2002 | 10 Apr 2007 | Nautilus, Inc. | Adjustable dumbbell |
| USD540894 | 1 Aug 2002 | 17 Apr 2007 | Nautilus, Inc. | Adjustable dumbbell |
| USD644701 | 30 Jul 2010 | 6 Sep 2011 | PowerBlock Holdings, Inc. | Selectorized dumbbell having kettlebell style handle |
| USD651672 | 7 May 2011 | 3 Jan 2012 | PowerBlock Holdings, Inc. | Selectorized dumbbell having kettlebell style handle |
