Graham; Douglas K.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Graham; Douglas K..The latest application filed is for "flow control methods and devices".
- Graham; Douglas K. - Carlisle PA
| Patent | Date |
|---|---|
| Flow control methods and devices Grant 9,574,337 - Lang , et al. February 21, 2 | 2017-02-21 |
| Flow control device Grant 9,309,989 - Lang , et al. April 12, 2 | 2016-04-12 |
| Flow control device for a storm water management system Grant 9,290,923 - Lang , et al. March 22, 2 | 2016-03-22 |
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