Howeth; D. Franklin

Patent Applications and Registrations

Patent applications and USPTO patent grants for Howeth; D. Franklin.The latest application filed is for "multiple filter/cyclone air filtration apparatus with single, movable filter cleaning system".

Company Profile

0.13.0

Howeth; D. Franklin - Forth Worth TX
Howeth; D. Franklin - Fort Worth TX

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Multiple filter/cyclone air filtration apparatus with single, movable filter cleaning system Grant 4,823,731 - Howeth April 25, 1	1989-04-25
Hopper loading directly insertable horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers Grant 4,802,983 - Howeth February 7, 1	1989-02-07
Fluid coupling construction for non-pressure balanced fluid conducting swivel joints Grant 4,749,192 - Howeth June 7, 1	1988-06-07
Air filter apparatus with modularized self-cleaning filter system Grant 4,740,221 - Howeth April 26, 1	1988-04-26
Rotary broom sweeper hopper Grant 4,708,723 - Howeth November 24, 1	1987-11-24
Pressure dependent dust control filter compressed air reversed flushing control system Grant 4,690,166 - Howeth September 1, 1	1987-09-01
Backflushed air filters with quick opening multiple discharge valve Grant 4,690,700 - Howeth September 1, 1	1987-09-01
Top loading and inverted backflushed air filter systems Grant 4,681,609 - Howeth July 21, 1	1987-07-21
Backflushed air filters Grant 4,661,131 - Howeth April 28, 1	1987-04-28
Hopper loading directly insertable horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers Grant 4,650,504 - Howeth March 17, 1	1987-03-17
Filter system for power sweeper Grant 4,637,825 - Howeth January 20, 1	1987-01-20
Multiple jet backflushed air filter Grant 4,544,389 - Howeth October 1, 1	1985-10-01
Self-cleaning air filter system Grant 4,482,367 - Howeth November 13, 1	1984-11-13

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.