Rheodyne holds the following United States patents:
| Rheodyne
Patents |
| Patent Number |
Issue Date |
Patent |
| 3,961,534 |
June 8, 1976 |
Two-position
rotary valve for injecting sample liquids into an analysis
system |
| 4,068,528 |
January 17, 1978 |
Two-position
rotary valve for injecting sample liquids into an analysis
system |
| 4,182,184 |
January 8, 1980 |
Sample Injector |
| 4,242,909 |
January 6, 1981 |
Sample injector |
| 4,506,558 |
March 26, 1985 |
Injector with
minimal flow-interrupt transients |
| 5,207,109 |
May 4, 1987 |
Internal-external sample
injector |
| 4,792,396 |
December 20, 1988 |
Multisize injector
port system |
| 5,803,117 |
September 8,
1998 |
Multiroute
full sweep selection valve |
| 6,012,488 |
January 11, 2000 |
Segmenting valve |
| 6,382,035 |
May 7, 2002 |
Multi-valve sample injection
apparatus |
| 6,453,946 |
September 24, 2002 |
Long lifetime fluid switching |
| 6,672,336 |
January 4, 2004 |
Dual random access, 3-way
rotary valve |
|
|
Patents
