Patent applications and USPTO patent grants for Metcalf; Darrell.The latest application filed is for "valve-controllable urinal drain line and plumbing component rinse management system for very low water and/or non-water use urinals".
Patent | Date |
---|---|
Valve-Controllable Urinal Drain Line and Plumbing Component Rinse Management System for Very Low Water and/or Non-Water Use Urinals App 20140020166 - Metcalf; Darrell ;   et al. | 2014-01-23 |
Positionable Zero-Footprint Self-Cleaning Urinal and Very Low Water-Usage Mist-Dispensing Means App 20120079650 - Metcalf; Darrell ;   et al. | 2012-04-05 |
System For Expediting Procurement Of Deliverables From Expedited Service Areas App 20090048878 - Metcalf; Darrell | 2009-02-19 |
System for safely disabling and re-enabling the manual vehicle control input of aircraft and other vehicles App 20060041345 - Metcalf; Darrell | 2006-02-23 |
Food serving apparatus App 20030211254 - Metcalf, Darrell | 2003-11-13 |
System and method for disconnecting and preventing unwanted telephone calls and for enhancing desired calls App 20020085700 - Metcalf, Darrell | 2002-07-04 |
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