Inventor
Harold J. Beard
Inventor
Baton Rouge, LA, US
Overview
17→
Patents
1982–1996
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C02Fprimary
C02FTreatment of water, waste water, sewage, or sludge24%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management24%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests24%
B01DSeparation20%
C10MLubricating compositions4%
E02BHydraulic engineering4%
C10GCracking hydrocarbon oils2%
PatentTitleYear
5,556,538'Denitrification system'19965,476,583'Mixed liquor wasting system'19955,360,538'Mixed liquor wasting system'19945,275,722'Oxidation ditch wastewater treatment and denitrification system'19945,084,167'Oxidation ditch for treatment of waste water'19924,950,406'Flow adjusting vane for intra-channel clarifier'19904,839,050'Skimmer system'19894,780,206'Turbulence control system'19884,634,528'Filter for intra-channel clarification'19874,626,353'Side skimmer for use in a channel'19864,457,844'Continuous waste water clarification process'19844,436,632'Clarifier skimmer'19844,389,312'Variable venturi sewerage aerator'19834,383,922'Waste water clarifier'19834,362,625'Waste water clarifier'19824,360,420'Distillation and solvent extraction process for rerefining used lubricating oil'19824,342,645'Method of rerefining used lubricating oil'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1983Patents assigned to BEARD HAROLD (2)· patent assignee history
1982Patents assigned to DELTA CENTRAL REFINING INC (2)· patent assignee history
1982–1996Based in Baton Rouge, LA, US· patent location history
1983–1994Patents assigned to BEARD HAROLD J (10)· patent assignee history
1986–1992Patents assigned to COX RALEIGH L (5)· patent assignee history
1990–1995Patents assigned to UNITED IND INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BEARD HAROLD Jself | 10 | 1983–1994 |
| COX RALEIGH L | 5 | 1986–1992 |
| BEARD HAROLDself | 2 | 1982–1983 |
| DELTA CENTRAL REFINING INC | 2 | 1982 |
| UNITED IND INC | 2 | 1990–1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Baton Rouge, LA, US | 17 | 1982–1996 |