Quotables
"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
PatentStorm News
Make the Most of PatentStorm
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest patents by subscribing to an RSS feed.
Got questions? Ask a Patent Expert!
Registered users: Manage your profile, comments and alerts.
US Patent 4935360 - Process for the microbial anaerobic production of acetic acid
US Patent Issued on June 19, 1990
Estimated Patent Expiration Date:
June 19, 2007Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
June 19, 2007Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractAn anaerobic production of acetic acid by fermentation can employ homoacetogenic bacteria in an aqueous solution of fermentable substrates, especially sugar, with the result of increased acetic-acid concentrations (over 3%), when the substrate solution initially used in the fermentation already contains acetic acid, for example, from a previous fermentation. In a fed-batch process, acetic acid is preferably present in a concentration ranging from about 0.5% to about 2%, and especially around 1%. At least two fermenters in compound (interconnected) arrangement are used. A real continuous fermentation is realized in at least two sequentially-operated fermenters by regulating the residence time in the first at about 1 day and in the second fermenter at at least 2 days.Other References
| InventorsAssigneeApplicationNo. 055960 filed on 06/01/1987US Classes:435/140, Acetic acid435/822, Using bacteria or actinomycetales435/823AcetobacterField of Search435/140, Acetic acid435/823AcetobacterExaminersPrimary: Lilling, Herbert J.Attorney, Agent or FirmUS Patent References3014804, 3779868, 3880716, 4022665, Two phase anaerobic digestionIssued on: 05/10/1977 Inventor: Ghosh , et al.4076844, Two stage process for the production of vinegar with high acetic acid concentration Issued on: 02/28/1978 Inventor: Ebner , et al.4282257, Production of vinegar with high acetic acid concentration Issued on: 08/04/1981 Inventor: Kunimatsu , et al.4371619, Acetic acid by fermentation Issued on: 02/01/1983 Inventor: Schwartz , et al.4378375, Process for the production of vinegar with high acetic acid concentration Issued on: 03/29/1983 Inventor: Kunimatsu , et al.4456622, Combination semi-continuous and batch process for preparation of vinegar Issued on: 06/26/1984 Inventor: Maselli , et al.4506012, Production of organic acids by a continuous fermentation process Issued on: 03/19/1985 Inventor: Reed4687668Continuous microbiological production of acetic acid and vinegar Issued on: 08/18/1987 Inventor: Ghommidh , et al. Foreign Patent References
International ClassesC12P 007/54C12R 001/02 Foreign Application Priority Data1986-06-02 DE |
