Patents by Inventor Sara Etter

Sara Etter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • POLLEN PRESERVATION METHOD
    Publication number: 20190008144
    Abstract: Disclosed are methods of preserving pollen such that the pollen has improved viability as compared to pollen that is left in ambient conditions. A method of the present invention includes separating dead pollen contents from live pollen grains. In some embodiments, pollen grains are stored with a substance that prevents dead pollen contents from interacting with live pollen grains. The substance may be a solid, liquid, gas, or combination thereof.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 10, 2019
    Applicant: Accelerated Ag Technologies, LLC
    Inventors: Sara Etter, Federico Valverde, Jason Cope, Todd Krone
  • Process for preparing optically active 1-amino-4-(hydroxymethyl) cyclopent-2-ene derivatives
    Patent number: 6524844
    Abstract: The invention discloses a new method for producing enantiomer-enriched 1-amino-4-(hydroxymethyl)-cyclopent-2-ene derivatives of the general formulae (I) and (II) in which R1 is hydrogen or a possibly substituted C1-8 alkyl radical, aryl radical or cycloalkyl radical and R2 is acyl.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: February 25, 2003
    Assignee: Lonza AG
    Inventors: Walter Brieden, Kay-Sara Etter, Michael Petersen
  • Process for preparing optically active 1-amino-4-(hydroxymethyl) cyclopent -2- ene derivatives
    Publication number: 20020042108
    Abstract: The invention discloses a new method for producing enantiomer-enriched 1-amino-4-(hydroxymethyl)-cyclopent-2-ene derivatives of the general formulae (I) and (II) in which R1 is hydrogen or a possibly substituted C1-8 alkyl rest, aryl rest or cycloalkyl rest and R2 is a possibly substituted acyl. According to said method a racemic 1-amino-4-(hydroxymethyl)-cyclopent-2-ene derivative of general formula (III), in which R1 has the meaning given above, is converted using a hydrolase and in the presence of an acylation agent.
    Type: Application
    Filed: June 22, 2001
    Publication date: April 11, 2002
    Applicant: LONZA AG
    Inventors: Walter Brieden, Kay-Sara Etter, Michael Petersen
  • Process for the preparation of a racemic or optically active 4-(hydroxymethyl)-2-cyclopentene derivative
    Patent number: 6262295
    Abstract: A process for the preparation of a racemic or optically active compound of the formula where the group R1 is an unsubstituted or a halogen substituted C1-4-alkyl, a C1-4-alkoxy, an aryl, an arylalkyl, an aryloxy, or arylalkylloxy.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: July 17, 2001
    Assignee: Lonza A.G.
    Inventors: Christine Bernegger, Eva Maria Urban, Olwen Mary Birch, Kurt Burgdorf, Frank Brux, Kay-Sara Etter, Pierre Bossard, Walter Brieden, Laurent Duc, John Gordon, Colm O'Murchu, Yves Guggisberg
  • Process for the preparation of an enantiomer of a (1R, 4S) or (1S, 4R)-1-amino-4-(hydroxymethyl)-2-cyclopentene derivative
    Patent number: 6252112
    Abstract: A novel process for the preparation of (1S, 4R)- or (1R, 4S)-4-(2-amino-6-chloro-9H-purin-9-yl)-2 -cyclopentene-1-methanol of the formula is described.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: June 26, 2001
    Assignee: Lonza A.G.,
    Inventors: Christine Bernegger, Eva Maria Urban, Olwen Mary Birch, Kurt Burgdorf, Frank Brux, Kay-Sara Etter, Pierre Bossard, Walter Brieden, Laurent Duc, John Gordon, Colm O'Murchu, Yves Guggisberg
  • Process for the preparation of (1S,4R)- or (1R,4S)- 4-(2-amino-6-chloro-9H-purin-9-yl)-2-cyclopentene-1-methanol
    Patent number: 6156893
    Abstract: A novel process for the preparation of (1S,4R)- or (1R,4S)-4-(2-amino-6-chloro-9H-purin-9-yl)-2-cyclo-pentene-1-methanol of the formulae ##STR1## is described. This entails in the first stage (.+-.)-2-aza-bicyclo[2.2.1]hept-5-en-3-one of the formula ##STR2## being acylated to give a (.+-.)-2-azabicyclo[2.2.1]hept-5-en-3-one derivative of the general formula ##STR3## in which R.sup.1 denotes C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, aryl or aryloxy, the latter being reduced in the second stage to give a cyclopentene derivative of the general formula ##STR4## in which R.sup.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: December 5, 2000
    Assignee: Lonza A.G.
    Inventors: Christine Bernegger, Eva Maria Urban, Olwen Mary Birch, Kurt Burgdorf, Frank Brux, Kay-Sara Etter, Pierre Bossard, Walter Brieden, Laurent Duc, John Gordon, Colm O'Murchu, Yves Guggisberg
  • Enantiomer compositions of (1R,4S)-1-butyrylamino-4-(hydroxymethyl)-2-cyclopentene
    Patent number: 6137007
    Abstract: A novel process for the preparation of (1S,4R)- or (1R,4S)-4-(2-amino-6-chloro-9H-purin-9-yl)-2-cyclopentene-1-methanol of the formulae ##STR1## is described. This entails in the first stage (.+-.)-2-azabicyclo[2.2.1]hept-5-en-3-one of the formula ##STR2## being acylated to give a (.+-.)-2-azabicyclo[2.2.1]hept-5-en-3-one derivative of the general formula ##STR3## in which R.sup.1 denotes C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, aryl or aryloxy, the latter being reduced in the second stage to give a cyclopentene derivative of the general formula ##STR4## in which R.sup.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: October 24, 2000
    Assignee: Lonza AG
    Inventors: Christine Bernegger, Eva Maria Urban, Olwen Mary Birch, Knut Burgdorf, Frank Brux, Kay-Sara Etter, Pierre Bossard, Walter Brieden, Laurent Duc, John Gordon, Colm O'Murchu, Yves Guggisberg