Inventor
Donald T. Bray
Inventor
Escondido, CA, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation75%
C02FTreatment of water, waste water, sewage, or sludge13%
B67DDispensing, delivering or transferring liquids, not otherwise provided for4%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
5,275,726'Spiral wound element for separation'1994D0337812'Sink faucet'19934,842,724'Water purification apparatus'19894,842,736'Spiral wound membrane'19894,828,708'Semipermeable membranes'1989D0295438'Water treatment assembly head'19884,713,175'Water purifier comprising stages mounted side-by-side to unitary header'19874,711,723'Water purification system'19874,548,714'Semipermeable membrane cartridge for use with a pressure container'19854,230,579'Brine flow control for membrane separation system'19804,208,289'Reverse osmosis apparatus employing a reciprocating membrane cartridge'19804,190,537'Water storage control for reverse osmosis system'19804,156,645'Conversion of sea water by reverse osmosis'19794,077,883'Reverse osmosis system with automatic pressure relief valve'19784,070,280'Manually operable reverse osmosis apparatus'19784,046,685'Simultaneous production of multiple grades of purified water by reverse osmosis'19774,021,351'Membrane cartridge with improved central collection tube'19773,966,616'Membrane cartridge'19763,959,146'Reverse osmosis system with automatic flushing'19763,939,074'Apparatus for control of a reverse osmosis system'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1989Patents assigned to DESALINATION SYSTEMS (14)· patent assignee history
1976–1994Based in Escondido, CA, US· patent location history
1987–1989Patents assigned to NIMBUS WATER SYSTEMS INC (4)· patent assignee history
1994Patents assigned to EXXON RESEARCH ENGINEERING CO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DESALINATION SYSTEMS | 14 | 1976–1989 |
| NIMBUS WATER SYSTEMS INC | 4 | 1987–1989 |
| EXXON RESEARCH ENGINEERING CO | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Escondido, California, US | 20 | 1976–1994 |