| 11784954 |
Personalized temporary unsubscribe mechanisms for email subscriptions |
Ram Bhushan Agrawal, Medha Kumari, Deepansh Rawal |
2023-10-10 |
| 11616746 |
Personalized temporary unsubscribe mechanisms for email subscriptions |
Ram Bhushan Agrawal, Medha Kumari, Deepansh Rawal |
2023-03-28 |
| 10287241 |
Methods and systems for producing urea |
Robert K. Collins |
2019-05-14 |
| 8481786 |
Systems and methods for integrated ammonia-urea process |
— |
2013-07-09 |
| 7687041 |
Apparatus and methods for urea production |
— |
2010-03-30 |
| 7642377 |
Systems and methods for integrated ammonia-urea process |
— |
2010-01-05 |
| 5744009 |
Method and apparatus for recovering condensables in vapor from a urea vacuum evaporator |
Richard Strait, Thomas Czuppon |
1998-04-28 |
| 5523483 |
Integrated urea/ammonia process |
Meghji N. Shah, Richard Strait |
1996-06-04 |