US PATENT SUBCLASS 435 / 449
.~ Fusion of cells

Current as of: June, 1999
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435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

440  DF  PROCESS OF MUTATION, CELL FUSION, OR GENETIC MODIFICATION {6}
449.~ Fusion of cells {5}
450  DF  .~.~> Employing electric current
451  DF  .~.~> One of the fusing cells is a human antibody-producing cell
452  DF  .~.~> One of the fusing cells is a mouse antibody-producing cell
453  DF  .~.~> One of the fusing cells is a plant cell
454  DF  .~.~> One of the fusing cells is a microorganism (e.g., prokaryote, fungus, etc.)

DEFINITION

Classification: 435/449

Fusion of cells:

(under subclass 440) Processes wherein cellular matter of two or more fusing partners is combined, thereby producing a cell which initially contains the genes of both of the fusing partners.

(1) Note. This subclass does not include fusion of a liposome to a cell unless two or more cells are also fused by the process.

(2) Note. This subclass does not include fusion of a cell to an enveloped virus as part of an infection or genetic alteration method.

(3) Note. Placement of a method in this subclass does not require fusion of nuclei.

SEE OR SEARCH THIS CLASS, SUBCLASS:

326+, for fused or hybrid animal cells, per se, which express immunoglobulin or antibody.

346, for fused or hybrid animal cells, per se, which do not produce immunoglobulin or antibody.

455+, for methods of liposome fusion for genetic alteration or recombination between or within DNA molecules in animal cells. 456+, for methods of introducing into an animal cell a nucleic acid surrounded by viral coat protein.

467, for methods of introducing an oncogene into an animal cell to establish a cell line.

471+, for methods of liposome fusion for genetic alteration or recombination between or within DNA molecules in plant

cells.

472, for methods of introducing into a microorganism a nucleic acid surrounded by a phage coat protein.