American Petro Mart, Inc.
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jan 26, 1988 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 70 Total Citation Count
- Apr 12, 1978 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
RE31456 High capacity folded moving bed ion exchange apparatus and method for treating phosphoric acidSep 27, 82Dec 06, 83[B01D]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4721519 Stable ammonium polyphosphate liquid fertilizer from merchant grade phosphoric acidExpiredMar 20, 86Jan 26, 88[C05B]
4493907 Method of using higher concentration sulfuric acid for stripping and precipitation of adsorbed magnesiumExpiredMar 23, 83Jan 15, 85[B01J, B01D]
4461710 Adjustably metered transfer of resin increments in folded bed ion exchange systemsExpiredMay 31, 83Jul 24, 84[B01D]
4385993 Method and apparatus for folded moving bed ion exchange systemExpiredJun 22, 81May 31, 83[B01D]
4363880 Method of selectively removing adsorbed calcium and magnesium from cation exchange resinsExpiredJun 22, 81Dec 14, 82[B01J]
4280904 High capacity folded moving bed ion exchange apparatus and method for treating phosphoric acidExpiredJan 31, 79Jul 28, 81[B01D]
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