Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8869319 | Circular suction outlet assembly and cover | Ronald H. Griffin | 2014-10-28 |
| 7774870 | Elongated suction outlet assembly with intrinsically safe sump | Ronald H. Griffin | 2010-08-17 |
| D613829 | Circular suction outlet assembly cover | Ronald H. Griffin | 2010-04-13 |
| 5246256 | Roll grooved pipe | Douglas R. Dole | 1993-09-21 |
| 5180193 | Elastomer-lined metal pipe | Douglas R. Dole | 1993-01-19 |
| 5169177 | Quick connect branch connector | William R. McLennan, Douglas R. Dole | 1992-12-08 |
| 4704983 | Flow metering sight glass | — | 1987-11-10 |
| 4702499 | Hingeable segmented pipe couplings | Peter G. DeRaymond | 1987-10-27 |
| 4699217 | Direct connect plumbing fixture | William R. McLennan, Albert J. Piccotti | 1987-10-13 |
| 4643224 | Alarm test device for a sprinkler system | Philip Schwarz | 1987-02-17 |
| D288116 | Yoke for a sprinkler | William R. McLennan | 1987-02-03 |
| D287992 | Yoke for a sprinkler | William R. McLennan | 1987-01-27 |
| 4639020 | Self-adjusting pipe clamp and coupling | Lani G. Ache | 1987-01-27 |
| 4611839 | Self-adjusting pipe clamp and coupling | Lani G. Ache | 1986-09-16 |
| 4605872 | Programmable CMOS circuit for use in connecting and disconnecting a semiconductor device in a redundant electrical circuit | — | 1986-08-12 |
| 4320312 | Smaller memory cells and logic circuits | Laurence G. Walker, James D. Sansbury, Juliana Manoliu | 1982-03-16 |