Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5972164 | Persulfate mixtures for repulping wet strength paper | Frank E. Caropreso, Robert H. Tieckelmann | 1999-10-26 | $3,249,000 |
| 5888350 | Method for repulping and/or decolorizing broke using persulfate/metal mixtures | Robert H. Tieckelmann | 1999-03-30 | $4,943,000 |
| 5849985 | Use of persulfate to destroy haloform | Robert H. Tieckelmann, by Colleen Gagliardi, executor, Gale D. Downey | 1998-12-15 | $4,317,000 |
| 5830382 | Persulfate/metal mixtures for repulping and/or decolorizing paper | Robert H. Tieckelmann | 1998-11-03 | $2,041,000 |
| 5744055 | Stable monopersulfate triple salt and its method of preparation | William A. Hills, James L. Manganaro, Basil A. Guiliano | 1998-04-28 | $3,748,000 |
| 5718837 | Persulfate mixtures for repulping wet strength paper | Frank E. Caropreso, Robert H. Tieckelmann | 1998-02-17 | $3,788,000 |
| 5501802 | Method for treating water using an organic sanitizer and a persulfate | Frank E. Caropreso, Robert H. Tieckelmann, Donald Lapham | 1996-03-26 | $2,489,000 |