Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10370560 | Method of coating a floor with polyurethane floor finishes with hybrid performance | Catherine Hanson, Robert D. P. Hei, Mark Levitt, Lauren K. Carlson, Nathan D. Peitersen +1 more | 2019-08-06 |
| 9920281 | Soil resistant surface treatment | Kim R. Smith, Erik C. Olson, Keith E. Olson, Steven E. Lentsch, Catherine Hanson +1 more | 2018-03-20 |
| 9376651 | Soil resistant floor treatment | Kim R. Smith, Catherine Hanson, Andrew Wold, Mark Levitt | 2016-06-28 |
| 8585829 | Soil resistant floor cleaner | Catherine Hanson, Kim R. Smith, Robert D. P. Hei, Robert Crowley, Traci Gioino +2 more | 2013-11-19 |
| 8469180 | Container, such as a food or beverage container, lubrication method | Keith D. Lokkesmoe, Guang-Jong Jason Wei | 2013-06-25 |
| 8440751 | Reduced phosphorus (TBEP) floor coatings | Timothy John Kohnke, Dale Larson, Robert D. P. Hei, Catherine Hanson | 2013-05-14 |
| 8292536 | Method and apparatus of applying a floor product solution | Steven J. Lange, Eric R. Balz, Brian Philip Carlson | 2012-10-23 |
| 8206511 | Daily cleaner with slip-resistant and gloss-enhancing properties | Melissa Collazo-Martinez, Robert D. P. Hei | 2012-06-26 |
| 8128998 | Polyurethane coating cure enhancement using ultrafine zinc oxide | Robert D. P. Hei, Mark Levitt, Lauren K. Carlson | 2012-03-06 |
| 8056703 | Container, such as a food or beverage container, lubrication method | Keith D. Lokkesmoe, Guang-Jong Jason Wei | 2011-11-15 |
| 7850772 | Product stability enhancement with phosphonium salts | Kim Person Hei, Joy G. Herdt, Amy Haupert | 2010-12-14 |
| 7674760 | Floor stripper/cleaner containing organic acid-base pair | Robert D. P. Hei, Brian Robert Leafblad, Lauren K. Carlson, Nicola Kriens, Christian Franz Liko | 2010-03-09 |
| 7655718 | Polyurethane coating cure enhancement using zinc carbonate initiators | Mark Levitt, Lauren K. Carlson, Robert D. P. Hei | 2010-02-02 |
| 7612024 | Polyalkylene glycol based solutions with enhanced high temperature stability | Kimberly Person Hei, Amy McBroom | 2009-11-03 |
| 7600631 | Container, such as a food or beverage container, lubrication method | Keith D. Lokkesmoe, Guang-Jong Jason Wei | 2009-10-13 |
| 7588645 | Stripping floor finishes using composition that thickens following dilution with water | Gregory G. Griese, Mark Levitt, Brian Robert Leafblad, Robert D. P. Hei, Steven J. Lange +1 more | 2009-09-15 |
| 7527861 | Jobsite-renewable multilayer floor finish with enhanced hardening rate | Robert D. P. Hei, Mark Levitt, Lauren K. Carlson | 2009-05-05 |
| 7527745 | Product stability enhancement with phosphonium salts | Kim Person Hei, Joy G. Herdt, Amy Haupert | 2009-05-05 |
| 7371711 | Conveyor lubricant and method for transporting articles on a conveyor system | Keith D. Lokkesmoe | 2008-05-13 |
| 7371712 | Conveyor lubricant and method for transporting articles on a conveyor system | Keith D. Lokkesmoe | 2008-05-13 |
| 7365046 | Method for stripping floor finishes using composition that thickens upon dilution with water | Gregory G. Griese, Mark Levitt, Brian Robert Leafblad, Robert D. P. Hei | 2008-04-29 |
| 7364033 | Container, such as a food or beverage container, lubrication method | Keith D. Lokkesmoe, Guang-Jong Jason Wei | 2008-04-29 |
| 7125827 | Lubricant composition having a fatty acid, a polyalkylene glycol polymer, and an anionic surfactant, wherein the lubricant is for a conveyor system | Kimberly L. P. Hei, Amy McBroom | 2006-10-24 |
| 7067182 | Lubricant coated beverage container or conveyor therefor | Robert D. P. Hei, Keith D. Lokkesmoe, Keith E. Olson | 2006-06-27 |
| 7018561 | Product stability enhancement with phosphonium salts | Kim Person Hei, Joy G. Herdt, Amy Haupert | 2006-03-28 |