Houston-McMillan; Mark Stewart
Patent Applications and Registrations
Patent applications and USPTO patent grants for Houston-McMillan; Mark Stewart.The latest application filed is for "ph colour indicator for use with agricultural compounds".
- Houston-McMillan; Mark Stewart - Toronto CA
| Patent | Date |
|---|---|
| pH colour indicator for use with agricultural compounds Grant 10,591,419 - Bloomberg , et al. | 2020-03-17 |
| Ph Colour Indicator For Use With Agricultural Compounds App 20190072494 - Bloomberg; Martin David ; et al. | 2019-03-07 |
| pH colour indicator for use with agricultural compounds Grant 10,145,803 - Bloomberg , et al. De | 2018-12-04 |
| Ph colour indicator for use with agricultural compounds App 20070111892 - Bloomberg; Martin David ; et al. | 2007-05-17 |
| pH colour indicator for use with agricultural compounds App 20050048665 - Bloomberg, Martin David ; et al. | 2005-03-03 |
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