Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6583103 | Two part cleaning formula resulting in an effervescent liquid | — | 2003-06-24 |
| 6425406 | Toilet bowl cleaning method | Timothy I. Moodycliffe, Virginia M. Hempel | 2002-07-30 |
| 6184192 | Chlorinated in-tank toilet cleansing block | — | 2001-02-06 |
| 6055679 | Passive lavatory cleanser dispensing system | John F. Goelz, Mark E. Wefler | 2000-05-02 |
| 5945390 | Toilet cleansing block | Jerome J. Veltman, Russell B. Wortley | 1999-08-31 |
| 5234974 | Alkali-soluble hydrophilic polymer coatings | Glenn C. Calhoun, Robert W. Stackman | 1993-08-10 |
| 5147915 | Alkali-soluble hydrophilic polymer coatings | Glenn C. Calhoun, Robert W. Stackman | 1992-09-15 |
| 5093396 | Alkali-soluble hydrophilic polymer coatings | Glenn C. Calhoun, Robert W. Stackman | 1992-03-03 |
| 4777670 | Under-the-rim dispensing unit | Mark E. Wefler | 1988-10-18 |