David R Hulme
Inventor
Stats
- 4 US patents issued
- 4 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 4 US Patents Issued
- 4 US Applications Filed
- 73 Total Citation Count
- Mar 26, 1999 Most Recent Filing
- Jan 31, 1995 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| SACHEM, INC. | 1
1 1 1 | 1995
1997 1998 1999 |
Inventor Addresses
| Address | Duration |
|---|---|
| Austin, TX | Nov 19, 96 - Mar 27, 01 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| B01D: | SEPARATION | 2 |
| C02F: | TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE | 3 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 6207039 | 2001 | Process for recovering onium hydroxides or onium salts from solutions containing onium compounds using electrochemical ion exchange | 8 |
| 5968338 | 1999 | Process for recovering onium hydroxides from solutions containing onium compounds | 25 |
| 5853555 | 1998 | Synthesis of onium hydroxides from onium salts | 6 |
| 5575901 | 1996 | Process for preparing organic and inorganic hydroxides or alkoxides or ammonia or organic amines from the corresponding salts by electrolysis | 19 |
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