Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D853590 | Electric power transmission line support tower | Meihuan Zhu Fulk | 2019-07-09 |
| D853591 | Electric power transmission line support tower | Meihuan Zhu Fulk | 2019-07-09 |
| D853598 | Electric power transmission line support tower | Meihuan Zhu Fulk | 2019-07-09 |
| D853599 | Electric power transmission line support tower | Meihuan Zhu Fulk | 2019-07-09 |
| 9768601 | High-capacity/efficiency transmission line design | Meihuan Zhu Fulk | 2017-09-19 |
| 8952251 | High-capacity/efficiency transmission line design | Meihuan Zhu Fulk | 2015-02-10 |
| D688624 | Power transmission tower | Meihuan Zhu Fulk | 2013-08-27 |
| D688625 | Power transmission line | Meihuan Zhu Fulk | 2013-08-27 |
| 7909175 | Filter assemblies | Kenneth Roy Weight, George Brandwood Peacock, Nicholas L. Yoward, Michael Grimes | 2011-03-22 |
| 7273550 | Filter assemblies with valves | Roger A. Buttery, Kenneth Roy Weight | 2007-09-25 |
| D412551 | End cap for a cylindrical filter | Karl S. Smith, Roger A. Buttery | 1999-08-03 |
| 5779903 | Filter assemblies and end caps for filter assemblies | Karl S. Smith, Roger A. Buttery | 1998-07-14 |
| 5468382 | Depth filter media | Nigel J. D. Cook, Kenneth Roy Weight, Roger A. Buttery, Michael Grimes | 1995-11-21 |
| 5429742 | Plastic frame filter unit for a stack assembly | Roger A. Buttery, John A. G. Tolcher | 1995-07-04 |
| 5279731 | Depth filter media | Nigel J. D. Cook, Kenneth Roy Weight, Roger A. Buttery | 1994-01-18 |
| 4832841 | Liquid treatment apparatus | Richard H. Knibbs, Gwilym H. Williams | 1989-05-23 |
| 4774002 | Liquid treatment such as dewatering of sludge | Gwilyn H. Williams | 1988-09-27 |