Inventor
Donald L. Heefner
Inventor
Hudson, MA, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C12Pprimary
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
C12NMicroorganisms or enzymes16%
C07DHeterocyclic compounds14%
C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms6%
C07CAcyclic or carbocyclic compounds4%
C12QMeasuring or testing processes involving enzymes, nucleic acids or microorganisms4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
A01HNew plants or non-transgenic processes for obtaining them2%
PatentTitleYear
6,207,679'Antimicrobial agents uses and compositions related thereto'20016,172,084'Quinoline-indole antimicrobial agents, uses and compositions related thereto'20016,103,905'Quinoline-indole antimicrobial agents, uses and compositions related thereto'20006,063,562'In vitro method for predicting the evolutionary response of HIV protease to a drug targeted thereagainst'20006,025,177'Asymmetric grignard synthesis with cyclic 1,2 aminoalcohols'20006,013,830'Asymmetric grignard synthesis with cyclic 1,2 aminoalcohols'20005,766,842'In vitro method for predicting the evolutionary response of a protein to a drug targeted thereagainst'19985,663,043'Method for inactivating non-enveloped viruses using a viricide-potentiating agent with a photoactivatible virucide'19975,658,796'Optical resolution of alkyl chroman-2-carboxylates'19975,529,929'Optical resolution of alkyl 1,4-benzodioxan-2-carboxylates using esterase from serratia marcescens'19965,457,051'Enantioselective hydrolysis of ketoprofen esters by beauveria bassiana and enzymes derived therefrom'19955,437,997'Carotenoid producing culture using Nespongiococcum excentricum'19955,312,742'Process for making L-phenyl acetyl carbinol (PAC), microorganisms for use in the process, and a method of preparing the microorganisms'19945,273,895'Enantioselective production of chiral carboxylic acids'19935,258,517'Method of preparing optically pure precursors of paroxetine'19935,231,007'Efficient riboflavin production with yeast'19935,164,303'Method for producing riboflavin with Candida famata'19925,120,655'Riboflavin producing strains of microorganisms'19925,079,145'Process for preparing microorganisms used for making phenyl acetyl carlinol (PAC)'19924,690,897'Method for transformation of anaerobic microorganisms'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1994Patents assigned to SYNERGEN ASSOCIATES INC (3)· patent assignee history
1987Based in Arvada, CO, US· patent location history
1992–1993Patents assigned to ZEAGEN INC (3)· patent assignee history
1992–1995Based in Longmont, CO, US· patent location history
1992–1994Based in Boulder, CO, US· patent location history
1993–2001Patents assigned to SEPRACOR INC (10)· patent assignee history
1993–2001Based in Hudson, MA, US· patent location history
1996–1997Patents assigned to SEPRACHEM INC (2)· patent assignee history
1997Patents assigned to HEMASURE INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEPRACOR INC | 10 | 1993–2001 |
| SYNERGEN ASSOCIATES INC | 3 | 1987–1994 |
| ZEAGEN INC | 3 | 1992–1993 |
| SEPRACHEM INC | 2 | 1996–1997 |
| HEMASURE INC | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hudson, Massachusetts, US | 13 | 1993–2001 |
| Longmont, CO, US | 4 | 1992–1995 |
| Boulder, CO, US | 2 | 1992–1994 |
| Arvada, CO, US | 1 | 1987 |