Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8530064 | Mold-inhibiting method and composition comprising dehydroacetic acid or salt thereof | Xiao Jiang | 2013-09-10 |
| 7057070 | Method of preparing quaternary ammonium hydroxide and quaternary ammonium carbonate in an aminoalcohol solvent | Chuen-Ing Tseng | 2006-06-06 |
| 6989459 | In situ process for preparing quaternary ammonium bicarbonates and quaternary ammonium carbonates | — | 2006-01-24 |
| 6784307 | In situ process for preparing quaternary ammonium bicarbonates and quaternary ammonium carbonates | — | 2004-08-31 |
| 6572788 | Amine oxide wood preservatives | — | 2003-06-03 |
| 6527981 | Azole/amine oxide preservatives | Chuen-Ing Tseng | 2003-03-04 |
| 6508869 | Boron compound/amine oxide compositions | Chuen-Ing Tseng, Charles Conrad Kempinska, Jr. | 2003-01-21 |
| 6485790 | Methods for enhancing penetration of wood preservatives | Shilan Shen | 2002-11-26 |
| 6448279 | Isothiazolone/amine oxide wood preservatives | Chuen-Ing Tseng | 2002-09-10 |
| 6375727 | Amine oxide/iodine containing blends for wood preservation | — | 2002-04-23 |
| 6340384 | Copper/amine oxide wood preservatives | — | 2002-01-22 |
| 6090855 | Quaternary ammonium carbonate compositions and preparation thereof | — | 2000-07-18 |
| 6087303 | Quaternary ammonium carboxylate and borate compositions and preparation thereof | — | 2000-07-11 |
| 5891921 | Quaternary ammonium carboxylate and borate compositions and preparation thereof | — | 1999-04-06 |
| 5855817 | Waterproofing and preservative compositions and preparation thereof | — | 1999-01-05 |
| 5833741 | Waterproofing and preservative compositons for wood | — | 1998-11-10 |
| 5760088 | Quaternary ammonium hydroxide compositions and preparation thereof | — | 1998-06-02 |
| 5700841 | Quaternary ammonium carboxylate and borate compositions and preparation thereof | — | 1997-12-23 |
| 5641726 | Quaternary ammonium carboxylate and borate compositions and preparation thereof | — | 1997-06-24 |
| 5559155 | Quaternary ammonium hydroxide compositions and preparation thereof | — | 1996-09-24 |
| 5523487 | Quaternary ammonium carbonate compositions and preparation thereof | — | 1996-06-04 |
| 5438034 | Quaternary ammonium carbonate compositions and preparation thereof | — | 1995-08-01 |
| 5399762 | Quaternary ammonium hydroxide compositions and preparation thereof | — | 1995-03-21 |
| 4806581 | Graft polymers of polymerizable monomers and olefin polymers | — | 1989-02-21 |
| 4661549 | Graft polymers of polymerizable monomers and olefin polymers | — | 1987-04-28 |