Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 10427076 | Diatomaceous earth filter apparatus and method | Robert Frank Swindell, Leonard Richiuso | 2019-10-01 | $29,351,000 |
| 8992775 | Diatomaceous earth filter apparatus and method | Robert Frank Swindell, Leonard Richiuso | 2015-03-31 | $26,225,000 |
| 8220386 | Lawn logos | Riley C. Fields, Daniel Lee Bizzell | 2012-07-17 | |
| 7806049 | Kit for creating artistic work on lawn | Riley C. Fields, Daniel Lee Bizzell | 2010-10-05 | |
| 7418900 | Method for creating artistic work on residential lawn | Riley C. Fields, Daniel Lee Bizzell | 2008-09-02 | |
| 7347142 | Method for creating artistic works on residential lawns | Riley C. Fields, Daniel Lee Bizzell | 2008-03-25 | |
| 7334518 | Kits for creating artistic works on residential lawns | Riley C. Fields, Daniel Lee Bizzell | 2008-02-26 | |
| 7225733 | Making stencils for creating artistic works on residential lawns | Daniel Lee Bizzell, Riley C. Fields | 2007-06-05 |