| 7690914 |
Apparatus for making a blow molded article with integral insert |
— |
2010-04-06 |
| 7476354 |
Method and apparatus for making a blow molded article with integral insert |
— |
2009-01-13 |
| 6444127 |
Water conditioning unit control valve |
Don Vaughan, Richard W. Wilder |
2002-09-03 |
| 6051144 |
Liquid filtration system and replaceable filter cartridge usable therewith |
Melvin R. Hemp, Richard E. Clack, W. Roger McPherson |
2000-04-18 |
| 5876610 |
Method and apparatus for monitoring liquid flow through an enclosed stream |
Melvin R. Hemp, W. Roger McPherson |
1999-03-02 |
| D386242 |
Countertop filter |
Daniel A. Klein, Leigh A. Fieldstad, Mark Gilbertson |
1997-11-11 |
| 5672232 |
Apparatus for producing tubular products from nonwoven fibers |
— |
1997-09-30 |
| 5560393 |
Self-contained, purified drinking water refrigerator storage apparatus |
— |
1996-10-01 |
| RE35252 |
Fluid flow control device for water treatment systems |
Richard E. Clack, Melvin R. Hemp |
1996-05-28 |
| 5460719 |
Modular flat filter assembly and method of making same |
Richard E. Clack, Paul Michael Pedersen |
1995-10-24 |
| 5454944 |
Self-contained, purified drinking water refrigerator storage apparatus |
— |
1995-10-03 |
| D355241 |
Water filter |
Russell Zylstra, John T. Dailey, Peter Chermak, Dan Klein, Melvin R. Hemp +2 more |
1995-02-07 |
| 5366576 |
Method for producing tubular products from nonwoven fibers |
— |
1994-11-22 |
| 5320752 |
Water purification system employing modular flat filter assembly |
Richard E. Clack |
1994-06-14 |
| 5290442 |
Self-contained, purified drinking water refrigerator storage apparatus |
— |
1994-03-01 |
| 5128035 |
Fluid flow control device for water treatment systems |
Richard E. Clack, Melvin R. Hemp |
1992-07-07 |
| 5002664 |
Fluid flow control device for R.O. filtration purification systems |
Richard E. Clack, Melvin R. Hemp |
1991-03-26 |
| 4997553 |
Storage and dispensing apparatus for reverse osmosis filtration purification system |
— |
1991-03-05 |
| 4806912 |
Monitoring system for a liquid purification system |
— |
1989-02-21 |
| 4496906 |
Liquid conductivity monitor |
— |
1985-01-29 |