Inventor
Robert B. Weisenfeld
Inventor
Chesterfield, MO, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds24%
C02FTreatment of water, waste water, sewage, or sludge18%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium18%
C01BNon-metallic elements12%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture6%
C22BProduction and refining of metals6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
9,394,173'Recovery of phosphorus values and salt impurities from aqueous waste streams'20168,669,396'Recovery of phosphorus values and salt impurities from aqueous waste streams'20148,344,178'Processes for producing and recovering shikimic acid'20137,064,235'Process for making iminodiacetic acid compounds from monoethanolamine substrates'20066,555,706'Process for making iminodiacetic acid compounds from monoethanolamine substrates'20035,723,049'Treatment of a formaldehyde-containing waste stream'19984,954,466'Recovery of cobalt catalyst values'19904,948,909'Process for the preparation of iminodiacetonitrile and iminodiacetic acid'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2003Patents assigned to MONSANTO CO (4)· patent assignee history
1990Based in Manchester, MO, US· patent location history
1998–2016Based in Chesterfield, MO, US· patent location history
2006–2016Patents assigned to MONSANTO TECHNOLOGY LLC (4)· patent assignee history
2013–2014Patents assigned to WEISENFELD ROBERT B (2)· patent assignee history
2013Patents assigned to FRIEDMAN TODD C (1)· patent assignee history
2014Patents assigned to CHOI CHIL Y (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MONSANTO CO | 4 | 1990–2003 |
| MONSANTO TECHNOLOGY LLC | 4 | 2006–2016 |
| WEISENFELD ROBERT Bself | 2 | 2013–2014 |
| CHOI CHIL Y | 1 | 2014 |
| FRIEDMAN TODD C | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chesterfield, MO, US | 6 | 1998–2016 |
| Manchester, MO, US | 2 | 1990 |