John Ira Yoder

US Patent:

54828520, Jan 9, 1996

Filed:

Jun 15, 1993

Appl. No.:

8/077787

Inventors:

John I. Yoder - Winters CA
Michael W. Lassner - Davis CA

Assignee:

Regents of the University of California - Oakland CA

International Classification:

C12N 1563
C12N 1582
A01H 400

US Classification:

4351723

Abstract:

This invention relates to methods for producing transgenic plants that contain a gene of interest and that are free of foreign ancillary nucleic acids. These methods allow for the production of plants which thus contain a desired gene, but which are free of vector sequences and/or marker sequences used to transform the plant. The method of transforming such plants calls for transforming the plants with a gene of interest by introduction of the gene on a DNA construct comprising a transposon and foreign ancillary nucleic acids; crossing the transformed plant through self-crossing or with another plant to obtain F. sub. 1 or more removed generation progeny; and utilizing a means for selecting those progeny that carry the gene of interest and are free of the ancillary nucleic acids. Such progeny may be detected biochemically, by Southern hybridization, through the use of polymerase chain reaction procedures and other methods available in the art.

US Patent:

55861261, Dec 17, 1996

Filed:

Dec 30, 1993

Appl. No.:

8/175733

Inventors:

John Yoder - San Jose CA

International Classification:

G06F 1100

US Classification:

371 30

Abstract:

An amplitude error detection and correction circuit apparatus and method can be used to detect and correct errors in signal amplitudes of a low information content signal during playback or transmission. The difference values dS/dt between the amplitudes of each sample and its neighboring samples are analyzed and compared to a maximum difference value dS. sub. max /dt. If the difference values dS/dt for a sample exceed the maximum difference value dS. sub. max /dt then the sample amplitude is elided or adjusted during playback or transmission to minimize distortion within the signal. The maximum difference value dS. sub. max /dt is determined by either the known characteristics of the signal type, analyzing a predetermined number of samples around the sample or grouping the data as it is input and storing or transmitting a maximum difference value for each group. The signal can be analyzed during the input of the signal, if the signal is accessible at this time, and the maximum difference value dS. sub. max /dt for each group of samples can be stored or transmitted with the signal.

US Patent:

57929246, Aug 11, 1998

Filed:

May 22, 1995

Appl. No.:

8/445606

Inventors:

John I. Yoder - Winters CA
Michael W. Lassner - Davis CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

C12N 1500
A01H 106

US Classification:

800205

Abstract:

This invention relates to methods for producing transgenic plants that contain a gene of interest and that are free of foreign ancillary nucleic acids. These methods allow for the production of plants which thus contain a desired gene, but which are free of vector sequences and/or marker sequences used to transform the plant. The method of transforming such plants calls for transforming the plants with a gene of interest by introduction of the gene on a DNA construct comprising a transposon and foreign ancillary nucleic acids; crossing the transformed plant through self-crossing or with another plant to obtain F. sub. 1 or more removed generation progeny; and utilizing a means for selecting those progeny that carry the gene of interest and are free of the ancillary nucleic acids. Such progeny may be detected biochemically, by Southern hybridization, through the use of polymerase chain reaction procedures and other methods available in the art.

US Patent:

52253414, Jul 6, 1993

Filed:

Jul 19, 1990

Appl. No.:

7/555271

Inventors:

John I. Yoder - Davis CA
Michael W. Lassner - Davis CA

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

C12N 1563
C12N 1582
A01H 400

US Classification:

4351723

Abstract:

This invention relates to methods for producing transgenic plants that contain a gene of interest and that are free of foreign ancillary nucleic acids. These methods allow for the production of plants which thus contain a desired gene, but which are free of vector sequences and/or marker sequences used to transform the plant. The method of transforming such plants calls for transforming the plants with a gene of interest by introduction of the gene on a DNA construct comprising a transposon and foreign ancillary nucleic acids; crossing the transformed plant through self-crossing or with another plant to obtain F. sub. 1 or more removed generation progeny; and utilizing a means for selecting those progeny that carry the gene of interest and are free of the ancillary nucleic acids. Such progeny may be detected biochemically, by Southern hybridization, through the use of polymerase chain reaction procedures and other methods available in the art.