|
| US4022418 | 9 Feb 1976 | 10 May 1977 | | Reading stand |
| US4422635 | 27 Jan 1982 | 27 Dec 1983 | | Portable multiple use exerciser |
| US4852909 | 27 Jul 1987 | 1 Aug 1989 | Academic Products, Inc. | Storage receptacle adapted for facile content reference |
| US4969698 | 31 Oct 1988 | 13 Nov 1990 | | Portable desk |
| US5129715 | 11 Sep 1990 | 14 Jul 1992 | | Portable desk with bifolding supports |
| US5377946 | 27 Jan 1994 | 3 Jan 1995 | | Combined bed tray and book holder |
| US5480119 | 11 May 1994 | 2 Jan 1996 | Pierce Companies, Inc. | Portable podium |
| US5660117 | 24 Jan 1996 | 26 Aug 1997 | | Foldable reading tray |
| US6113052 | 17 Jun 1999 | 5 Sep 2000 | Luigi Gentile | Portable desk |
| US6645031 | 8 Feb 2002 | 11 Nov 2003 | Learning Curve International, Inc. | Playboard with collapsing easel |
| US7322063 | 29 Dec 2005 | 29 Jan 2008 | | Combination notebook computer support and cushion |
| USD281657 | 10 Jun 1983 | 10 Dec 1985 | | Lap mounted joystick holder |
| USD281937 | 10 Jun 1983 | 31 Dec 1985 | | Lap mounted adjustable tray |
| USD290316 | 18 Jun 1984 | 16 Jun 1987 | | Portable support stand for a typewriter |
| USD435360 | 17 Jun 1999 | 26 Dec 2000 | Luigi Gentile | Portable desk |
| USD477641 | 8 Feb 2002 | 22 Jul 2003 | Learning Curve International, Inc. | Edges of supports for playboard with easel |
