Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11701672 | Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle | Carl L. C. Kah, Jr. | 2023-07-18 |
| 11541411 | Sprinkler elbow connector with integral pressure regulator | — | 2023-01-03 |
| 11478804 | Sprinkler flow stop and pressure regulator combination | Carl L. C. Kah, Jr., Weiming Feng, Richard Zhang | 2022-10-25 |
| 11118556 | Adapter element with integrated water turbine generator | — | 2021-09-14 |
| 10828651 | Spray nozzle with adjustable arc spray elevation angle and flow | Carl L. C. Kah, Jr. | 2020-11-10 |
| 10815958 | Adapter element with integrated water turbine generator | — | 2020-10-27 |
| 10232387 | Pressure regulating nozzle assembly with flow control ring | Carl L. C. Kah, Jr., Weiming Feng | 2019-03-19 |
| 10220405 | Sprinkler flow stop and pressure regulator combination | Carl L. C. Kah, Jr., Weiming Feng, Richard Zhang | 2019-03-05 |
| 9981276 | Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle | Carl L. C. Kah, Jr. | 2018-05-29 |
| 9937513 | Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle | — | 2018-04-10 |
| 9757743 | Water rotatable distributor for stream rotary sprinklers | Carl L. C. Kah, Jr. | 2017-09-12 |
| 9387496 | Apparatus for maintaining constant speed in a viscous damped rotary nozzle sprinkler | — | 2016-07-12 |
| 9248459 | Arc and range of coverage adjustable stream rotor sprinkler | Carl L. C. Kah, Jr., Weiming Feng, Frederick A. Hall | 2016-02-02 |
| 9192956 | Sprinkler flow stop and pressure regulator combination | Carl L. C. Kah, Jr., Weiming Feng, Richard Zhang | 2015-11-24 |
| 8991730 | Pressure regulating nozzle assembly with flow control ring | Carl L. C. Kah, Jr., Weiming Feng | 2015-03-31 |
| 8991726 | Sprinkler head nozzle assembly with adjustable arc, flow rate and stream angle | Carl L. C. Kah, Jr. | 2015-03-31 |
| 8893986 | Spray nozzle with adjustable arc spray elevation angle and flow | Carl L. C. Kah, Jr. | 2014-11-25 |
| D708300 | Sprinkler top | Carl L. C. Kah, Jr. | 2014-07-01 |
| D706229 | Control module | Carl L. C. Kah, Jr., Frederick A. Hall | 2014-06-03 |
| 8628027 | Oscillating nozzle sprinkler assembly with matched precipitation and adjustable arc of coverage | Carl L. C. Kah, Jr., Weiming Feng | 2014-01-14 |
| D697176 | Rotary nozzle head | Carl L. C. Kah, Jr. | 2014-01-07 |
| 8596559 | Rotary drive sprinkler with flow control and shut off valve in nozzle housing | Carl L. C. Kah, Jr. | 2013-12-03 |
| D689441 | Control enclosure | Carl L. C. Kah, Jr., Frederick A. Hall | 2013-09-10 |
| D682391 | Rotary nozzle head | Carl L. C. Kah, Jr., Richard Zhang, Robert Brady | 2013-05-14 |
| 8136743 | Rotary drive sprinkler with flow control and shut off valve in nozzle housing | Carl L. C. Kah, Jr. | 2012-03-20 |