Patents by Inventor Jonathan GRESSELS

Jonathan GRESSELS 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).

  • Patent number: 9938492
    Abstract: A photobioreactor comprising a sealed, covered plastic sheeting coated with a thin layer of a highly dense culture of photoautotrophic single celled organism. Carbon dioxide is exchanged from a gas space above the culture through attendant mixing by subtending wave motion. The photobioreactor provides a substantial improvement in processing costs in growth media sterilization as well as reduced expenses related to energy and raw materials, especially carbon dioxide. Capital expenses are reduced by eliminating the need for sparging and compressors for suspending cells and mixing carbon dioxide.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: April 10, 2018
    Inventors: Jonathan Gressel, Mordechai Granot
  • Publication number: 20150275161
    Abstract: A photobioreactor comprising a sealed, covered plastic sheeting coated with a thin layer of a highly dense culture of photoautotrophic single celled organism. Carbon dioxide is exchanged from a gas space above the culture through attendant mixing by subtending wave motion. The photobioreactor provides a substantial improvement in processing costs in growth media sterilization as well as reduced expenses related to energy and raw materials, especially carbon dioxide. Capital expenses are reduced by eliminating the need for sparging and compressors for suspending cells and mixing carbon dioxide.
    Type: Application
    Filed: October 22, 2013
    Publication date: October 1, 2015
    Inventors: Jonathan GRESSELS, Mordechai GRANOT
  • Patent number: 8367392
    Abstract: A method for transforming algal or cyanobacterial cells, comprising mixing a polynucleotide for transforming the cells with the polynucleotide; performing microporation by applying a plurality of electrical pulses to the cells with a microporation apparatus; and incubating said polynucleotide with the cells after said applying said electrical pulses.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: February 5, 2013
    Assignee: Transalgae Ltd.
    Inventors: Daniella Schatz, Doron Eisenstadt, Jonathan Gressel, Shai Ufaz, Ofra Chen, Dikla Journo Eckstein
  • Patent number: 8232088
    Abstract: This disclosure provides herbicide resistant algae and cyanobacteria. This disclosure also provides a method to cultivate algae and cyanobacteria in axenic cultures without contaminating species. Moreover, this disclosure provides transgenic algal and cyanobacterial cells that are capable of high production in high light intensities as typically applied in cultivation. Furthermore, a novel transformation method is provided for algal cells.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: July 31, 2012
    Assignee: Transalgae Ltd
    Inventors: Ofra Chen, Shai Einbinder, Daniella Schatz, Doron Eisenstadt, Jonathan Gressel
  • Publication number: 20110081706
    Abstract: The high-speed centrifugation heretofore required for harvesting micro algae and cyanobacteria cultured for biofuels and other co-products is a major cost constraint. Mixing algae/cyanobacteria at high-density culture with far less alkali than previously assumed is sufficient to flocculate the cells. The amount of flocculant required is a function of the logarithm of cell density, and is not a linear function of cell density as had been thought. The least expensive alkali treatments are with slaked limestone or dolomite (calcium hydroxide and magnesium hydroxides). Further water can be removed from the floc by sedimentation, low speed centrifugation, dissolved air flotation or filtration, prior to further processing to separate oil from valuable co-products.
    Type: Application
    Filed: September 28, 2010
    Publication date: April 7, 2011
    Applicant: TransAlgae Ltd
    Inventors: Ami Schlesinger, Doron Eisenstadt, Shai Einbinder, Jonathan Gressel
  • Publication number: 20110045593
    Abstract: Genetic mechanisms for mitigating the effects of introgression of a genetically engineered genetic trait of cultivated algae or cyanobacteria to its wild type or to an undesirable, interbreeding related species, as well as preventing the establishment of the transgenic algae or cyanobacteria in natural ecosystems by suppressing the activity of the carbon concentrating mechanism.
    Type: Application
    Filed: August 17, 2010
    Publication date: February 24, 2011
    Applicant: TransAlgae (Israel) Ltd.
    Inventors: Ofra Chen, Shai Ufaz, Doron Eisenstadt, Daniella Schatz, Jonathan Gressel, Shai Einbinder
  • Publication number: 20100260887
    Abstract: This disclosure provides a method to improve lysine and methionine content of algae and cyanobacteria through genetic modification in combination with modified expression of high lysine and methionine proteins as sinks for the amino acids. The method of this disclosure is specifically useful in animal feed production.
    Type: Application
    Filed: February 16, 2010
    Publication date: October 14, 2010
    Applicant: TransAlgae
    Inventors: Shai Ufaz, Jonathan Gressel
  • Publication number: 20100087006
    Abstract: This disclosure provides a method to reduce cell damage caused by near UV light absorption of algal or cyanobacterial cultures. The algal or cyanobacterial cells are transformed to express one or more fluorescent proteins, that absorb the harmful UV or near UV wavelengths and emits wavelengths that are photosynthetically more active. The photosynthetic pigments of the transgenic algal or cyanobacterial cell culture will then absorb the photosynthetically active light emitted by the fluorescent proteins. Accordingly the harmful effects of the UV and near UV radiation are reduced and the photosynthetic activity of the algal or cyanobacterial cells is improved.
    Type: Application
    Filed: September 18, 2009
    Publication date: April 8, 2010
    Applicant: TransAlgae Ltd
    Inventors: Jonathan Gressel, Doron Eisenstadt, Daniella Schatz, Shai Einbinder, Shai Ufaz
  • Publication number: 20100081177
    Abstract: Algae and cyanobacteria are genetically engineered to have lower RUBISCO (ribulose-1,5-bisphosphate carboxylase/oxygenase) content in order to grow more efficiently at elevated carbon dioxide levels while recycling industrial CO2 emissions back to products, and so as not to be able to grow outside of cultivation.
    Type: Application
    Filed: September 8, 2009
    Publication date: April 1, 2010
    Applicant: TransAlgae Ltd
    Inventors: Daniella Schatz, Jonathan Gressel, Doron Eisenstadt, Shai Ufaz
  • Publication number: 20100068721
    Abstract: Virus contaminations of bioreactors can cause considerable losses in the industry and prevention of such contaminations is usually a major concern, especially in continuous cultures and particularly in outdoor/uncovered operations such as ponds or “racing ponds”. Use of transgenic algae/cyanobacteria harboring introgressed virus/phage DNA fragments, cultured in these bioreactors/ponds will provide protection to a range of viruses/phages. Molecular mechanisms such as lysogeny and post transcriptional gene silencing (PTGS) are being exploited to produce protected algae/cyanobacteria with cross protective resistance against various viruses/phage, thus gaining bioreactor stability.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 18, 2010
    Applicant: TransAlgae Ltd
    Inventors: Jonathan Gressel, Ofra Chen, Michael Danon
  • Publication number: 20100068816
    Abstract: This disclosure provides herbicide resistant algae and cyanobacteria. This disclosure also provides a method to cultivate algae and cyanobacteria in axenic cultures without contaminating species. Moreover, this disclosure provides transgenic algal and cyanobacterial cells that are capable of high production in high light intensities as typically applied in cultivation. Furthermore, a novel transformation method is provided for algal cells.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 18, 2010
    Applicant: TransAlgae Ltd
    Inventors: Ofra Chen, Shai Einbinder, Daniella Schatz, Doron Eisenstadt, Jonathan Gressel
  • Patent number: 7612255
    Abstract: Genetic mechanisms for mitigating the effects of introgression of a genetically engineered genetic trait of a cultivated crop to an undesirable, interbreeding related species.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: November 3, 2009
    Inventors: Jonathan Gressel, Hani Al-Ahmad
  • Publication number: 20090215179
    Abstract: Genetic mechanisms for mitigating the effects of introgression of a genetically engineered genetic trait of cultivated algae or cyanobacteria to its wild type or to an undesirable, interbreeding related species. as well as preventing the establishment of the transgenic algae or cyanobacteria in natural ecosystems.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 27, 2009
    Applicant: TransAlgae
    Inventors: Jonathan Gressel, Shai Ufaz, Ofra Shen, Doron Eisenstadt
  • Publication number: 20070149409
    Abstract: Functionalized polymers are mixed with pesticides to form semi-stable complexes with desirable field properties: reduced leaching in soil, improved leaf retention (rainfastness), selective unloading to roots and convenient packaging and application. Pesticides that may be so complexed include herbicides, insecticides (including compounds controlling non-insect arthropods and nematodes), bacteriocides, rodenticides, and fungicides. Polymers with which they may be complexed include derivatives of carbohydrates, amides, imines, alkanes, vinyls, styrenes or glycols. The polymers may be functionalized with chemical groups that exhibit ionic (amines, carboxyls), hydrophobic, complexing (e.g. metal chelating) and ligand binding interactions. The variously functionalized polymers may be mixed, grafted, or fused to obtain optimal properties. The polymer/pesticide formulations may be applied as granules, as suspensions or solutions in sprays, as foams, or as coats for seeds and fertilizers.
    Type: Application
    Filed: June 27, 2006
    Publication date: June 28, 2007
    Inventors: Michael Burnet, Jonathan Gressel
  • Publication number: 20050181952
    Abstract: Acetolactate synthase inhibitors, such as imazapyr and pyrithiobac and mixtures thereof, prepared as slow-release formulations are useful for the preparation of seed dressing, seed priming, seed or particle-substrate coating herbicidal compositions for control of parasitic weeds such as Orobanche spp., Striga spp. and Alectra spp. The use of agrochemicals can be rendered more efficient when coated or bound as a slow release formulation. Particles used as the substrateto be coated may be plant seeds or particles made of a strong or weak ionic resin or a biodegradable carbohydrate natural polymer, a modified polymer, or artificially lignified cellulose. The herbicidal formulation may be covalently linked or adsorbed to the surface of the particle. The same slow release formulations are invaluable for preventing rapid herbicide leaching in agricultural as well as non-agricultural weed control situations.
    Type: Application
    Filed: January 3, 2005
    Publication date: August 18, 2005
    Inventors: Michael Burnet, Fred Kanampiu, Jonathan Gressel
  • Publication number: 20050089882
    Abstract: An isolated polynucleotide comprising a nucleotide sequence encoding a polypeptide having a flavanone-7-O-glucoside-2?-O-rhamnosyl-transferase catalytic activity and its uses.
    Type: Application
    Filed: February 20, 2004
    Publication date: April 28, 2005
    Inventors: Jonathan Gressel, Yoram Eyal, Robert Fluhr
  • Publication number: 20040172678
    Abstract: Genetic mechanisms for mitigating the effects of introgression of a genetically engineered genetic trait of a cultivated crop to an undesirable, interbreeding related species.
    Type: Application
    Filed: February 10, 2004
    Publication date: September 2, 2004
    Applicant: Yeda Research and Development Co., Ltd.
    Inventors: Jonathan Gressel, Hani Al-Ahmad
  • Patent number: 6734343
    Abstract: An isolated polynucleotide comprising a nucleotide sequence encoding a polypeptide having a flavanone-7-O-glucoside-2″-O-rhamnosyl-transferase catalytic activity and its uses.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: May 11, 2004
    Assignees: Yeda Research and Development Co. Ltd., Agricultural Research Organization, The Volcani Center
    Inventors: Jonathan Gressel, Yoram Eyal, Robert Fluhr
  • Publication number: 20030190655
    Abstract: A method of marking individuals of commercially distributed organism or organisms and offspring thereof is disclosed. The method is effected by genetically marking a plurality of individuals of the organism or organisms with a plurality of unique DNA sequences, each of the unique DNA sequences includes a variable region, so as to produce artificial, inherited and detectable genetic variability among the plurality of individuals of the commercially distributed organism or organisms.
    Type: Application
    Filed: March 4, 2003
    Publication date: October 9, 2003
    Inventor: Jonathan Gressel
  • Patent number: 6629038
    Abstract: A method of marking individuals of commercially distributed organism or organisms and offspring thereof is disclosed. The method is effected by genetically marking a plurality of individuals of the organism or organisms with a plurality of unique DNA sequences, each of the unique DNA sequences includes a variable region, so as to produce artificial, inherited and detectable genetic variability among the plurality of individuals of the commercially distributed organism or organisms.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: September 30, 2003
    Assignee: Yeda Research and Development Co. Ltd.
    Inventor: Jonathan Gressel