Issued Patents All Time
Showing 1–25 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10159997 | Low cost trigger sprayer | Philip L. Nelson | 2018-12-25 |
| 9579675 | Pre-compression valve systems for trigger sprayers | Philip L. Nelson | 2017-02-28 |
| 8864052 | Low cost trigger sprayer | Philip L. Nelson | 2014-10-21 |
| 8469291 | Low cost trigger sprayer | Philip L. Nelson | 2013-06-25 |
| D653541 | Trigger sprayer cover | Philip L. Nelson | 2012-02-07 |
| 8104646 | Trigger sprayer having a reduced number of parts and a double tubular valve member | Philip L. Nelson | 2012-01-31 |
| 7967171 | Air foaming pump trigger sprayer | Philip L. Nelson | 2011-06-28 |
| 7942291 | Break-away spring and piston rod for a trigger sprayer | — | 2011-05-17 |
| 7780098 | Fan spray pattern indexing nozzle for a trigger sprayer | Philip Nelson | 2010-08-24 |
| 7775406 | Trigger sprayer with venting membrane in protective housing cavity | Jeffrey P. Stark | 2010-08-17 |
| 7735688 | Rotating collar and locking and venting closure connector for an air foaming pump dispenser | Philip L. Nelson | 2010-06-15 |
| 7712636 | Trigger sprayer piston rod with integral spring and pivoting piston connection | Philip L. Nelson | 2010-05-11 |
| 7677416 | In-line manually operated liquid dispenser with simplified construction | Jeffrey P. Stark | 2010-03-16 |
| 7637396 | Trigger sprayer piston rod with integral spring and ball and socket piston connection | Jeffrey P. Stark | 2009-12-29 |
| 7571836 | Trigger sprayer with piston rod and spring snap connection | Philip L. Nelson | 2009-08-11 |
| 7510101 | Dual chamber lotion pump | Philip L. Nelson | 2009-03-31 |
| 7478739 | Snap down bayonet connector | — | 2009-01-20 |
| 7455198 | Trigger forward pivot limit for a trigger sprayer | Philip L. Nelson, Walter J. Clynes | 2008-11-25 |
| D570214 | Trigger for a trigger sprayer | Jeffrey P. Stark | 2008-06-03 |
| 7311227 | Trigger sprayer venting system with reduced drag on vent piston | — | 2007-12-25 |
| D547182 | Lotion pump head | Dale Picolet | 2007-07-24 |
| D543106 | Lotion pump head | Dale Picolet, Jeffrey P. Stark | 2007-05-22 |
| 7198180 | Container closure with biased closed tube valve | Martin S. Laffey | 2007-04-03 |
| 7195138 | Container closure with biased closed valve | Philip L. Nelson | 2007-03-27 |
| 7124914 | Dual chamber lotion pump | Philip L. Nelson | 2006-10-24 |