Harold J. Beard — 17 Patents at Delta Central Refining

Harold J. Beard has been granted 17 US patents while listed as an inventor at Delta Central Refining. The first was granted in 1982 and the most recent in September 1996. Harold J. Beard ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Harold J. Beard in Baton Rouge, LA, US.

Patents per Year

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Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
5556538	Denitrification system	Gary J. Beard	1996-09-17
5476583	Mixed liquor wasting system	—	1995-12-19	$780,000
5360538	Mixed liquor wasting system	—	1994-11-01
5275722	Oxidation ditch wastewater treatment and denitrification system	—	1994-01-04
5084167	Oxidation ditch for treatment of waste water	Raleigh L. Cox	1992-01-28
4950406	Flow adjusting vane for intra-channel clarifier	Raleigh L. Cox, Gary J. Beard, Mark B. Beard, Michael Todd	1990-08-21	$830,000
4839050	Skimmer system	Raleigh L. Cox	1989-06-13
4780206	Turbulence control system	Raleigh L. Cox, Gary J. Beard, Mark B. Beard	1988-10-25
4634528	Filter for intra-channel clarification	Raleigh L. Cox	1987-01-06
4626353	Side skimmer for use in a channel	Raleigh L. Cox	1986-12-02
4457844	Continuous waste water clarification process	—	1984-07-03
4436632	Clarifier skimmer	—	1984-03-13
4389312	Variable venturi sewerage aerator	—	1983-06-21
4383922	Waste water clarifier	—	1983-05-17
4362625	Waste water clarifier	—	1982-12-07
4360420	Distillation and solvent extraction process for rerefining used lubricating oil	Laird C. Fletcher, Richard H. O'Blasny	1982-11-23
4342645	Method of rerefining used lubricating oil	Laird C. Fletcher	1982-08-03

Harold J. Beard — 17 Patents

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