Inventor
David G. Palmer
Inventor
Lincoln, NE, US
Overview
16→
Patents
1989–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Sprimary
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests31%
C02FTreatment of water, waste water, sewage, or sludge28%
B01DSeparation17%
Y10TTechnical subjects covered by former us classification11%
B67DDispensing, delivering or transferring liquids, not otherwise provided for3%
C23FNon-mechanical removal of metallic material from surface3%
F25BRefrigeration machines, plants or systems3%
F25DRefrigerators3%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers3%
PatentTitleYear
10,887,701Audio transducers20219,758,879'Corrosion prevention assembly'20177,273,561'Method for determining the chemical dosage required to reduce sulfides in wastewater to acceptable levels'20076,508,070'Water chiller'20036,099,693'Movable water distiller'20006,048,456'Water filter housing'20005,662,779'Portable water purification apparatus'19975,304,286'Water supply system'19945,178,734'Water distilling apparatus with vertically stacked components'19935,021,128'Water distillation system and method with controls'1991D0314225'Water distillation unit'1991D0313062'Water distilling apparatus'19904,975,154'Water purification method and apparatus with conductivity sensing controls'19904,906,337'Water supply system'19904,888,097'Water purification method and apparatus'19894,805,692'Condenser for water purification apparatus'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2000Patents assigned to PURE WATER INC (6)· patent assignee history
1989–2007Based in Lincoln, NE, US· patent location history
1990–1994Patents assigned to PALMER DAVID G (2)· patent assignee history
1993Patents assigned to INT WATER TECHNOLOGIES INC (1)· patent assignee history
2000–2003Patents assigned to PALMER TECHNOLOGIES INC (2)· patent assignee history
2017Patents assigned to BRP US INC (1)· patent assignee history
2017Based in Waukegan, IL, US· patent location history
2021Based in Auckland, NZ· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PURE WATER INC | 6 | 1989–2000 |
| PALMER DAVID Gself | 2 | 1990–1994 |
| PALMER TECHNOLOGIES INC | 2 | 2000–2003 |
| BRP US INC | 1 | 2017 |
| INT WATER TECHNOLOGIES INC | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Lincoln, NE, US | 14 | 1989–2007 |
| Auckland, NZ | 1 | 2021 |
| Waukegan, Illinois, US | 1 | 2017 |