available at: http://www.delphion.com/ are numerus interesting patents. they can be viewed in .tiff format (graphic) and can be downloaded in .pdf format for about $3.00US each. much of the wording in the patents of tissue culture techniques didn't give details necessary to reproduce results-- though most of those techniques are available in scientific journals at the library, not all seems to be disclosed and we are left with a mystery. Searching the patent office does help indicate what is going on in the (very) private sector. ................................................................ Patent US6207455 Lentiviral vectors US6197585 Human cell-lines US6180404 Cultural medium for maintaining neural cells in ambient atmosphere US6162641 Neuregulin response element and uses therefor US6156572 Bioartificial extracellular matrix containing hydrogel matrix derivatized with cell adhesive peptide fragment US6146888 Method of enriching for mammalian stem cells US6106827 Method of producing genetically modified astrocytes and uses thereof US6103710 Glucocorticoid response elements US6103530 Cultures of human CNS neural stem cells US6087170 VZV gene, mutant VZV and immunogenic compositions US6087167 Eck receptor ligands US6083725 Tranfected human cells expressing human .alpha.-galactosidase A protein US6066726 Neuron-specific transcriptional promoter US6063630 Targeted introduction of DNA into primary or secondary cells and their use for gene therapy US6040180 In vitro generation of differentiated neurons from cultures of mammalian multipotential CNS stem cells US6033906 Methods for differentiating neural stem cells to glial cells using neuregulins US6020197 Method for production of neuroblasts US6013521 Method for production of neuroblasts US6001654 Methods for differentiating neural stem cells to neurons or smooth muscle cells using TGT-ß super family growth factors US6001557 Adenovirus and methods of use thereof US5994084 Models of Alzheimer's disease US5980885 Growth factor-induced proliferation of neural precursor cells in vivo US5968829 Human CNS neural stem cells US5958767 Engraftable human neural stem cells US5935856 Method of inhibiting the growth of BFGF-dependent neoplastic cells in vitro US5916807 Antisense oligonucleotides against human protein kinase C US5908783 Alternating lysine-alanine copolymer substrate for promoting neuron survival and axon growth US5885970 Antisense oligonucleotides against human protein kinase C US5882923 Glial cell line-derived neurotrophic factor regulation of ureteric budding and growth US5869266 Human olfactory neuron cultures to diagnose Alzheimer's disease US5863797 Gene fusion encoding a hypersecretor protein US5858740 Method for production of high titer virus and high efficiency retroviral mediated transduction of mammalian cells US5858721 Three-dimensional cell and tissue culture system US5851832 In vitro growth and proliferation of multipotent neural stem cells and their progeny US5849585 Isolating and culturing Schwann cells US5849553 Mammalian multipotent neural stem cells US5837535 Neuronal-neonatal gene: neuronatin US5834029 Nerve guidance channel containing bioartificial three-dimensional hydrogel extracellular matrix derivatized with cell adhesive peptide fragment US5830708 Methods for production of a naturally secreted extracellular matrix US5830651 Human oligodendroglial progenitor cell line US5807731 Glioblastoma cell lines that produce angiogenesis inhibiting factor US5795710 Method and apparatus for organ culture US5792900 Compositions and methods for producing and using homogenous neuronal cell transplants US5776743 Method of sensitizing tumor cells with adenovirus E1A US5766948 Method for production of neuroblasts US5753506 Isolation propagation and directed differentiation of stem cells from embryonic and adult central nervous system of mammals US5753491 Use of neuro-derived fetal cell lines for transplantation therapy US5750376 In vitro growth and proliferation of genetically modified multipotent neural stem cells and their progeny US5750103 Method for transplanting cells into the brain and therapeutic uses therefor US5721139 Isolating and culturing schwann cells US5712160 Method of stimulating growth using neurotrophic peptides US5691201 Use of sabeluzole in chronic neurodegenerative diseases US5681711 Method for promoting apoptosis in mammalian neual cells US5679340 Cells with multiple altered epitopes on a surface antigen for use in transplantation US5672499 Immoralized neural crest stem cells and methods of making US5672344 Viral-mediated gene transfer system US5654189 Preparation of pure cultures of post-mitotic human neurons US5654188 Neuroblastoma-associated regulator gene US5654183 Genetically engineered mammalian neural crest stem cells US5643773 Preparation of elongated seamless capsules containing a coaxial rod and biological material US5629159 Immortalization and disimmortalization of cells US5627047 Astrocyte-specific transcription of human genes US5595903 Genetically engineered human acetylcholinesterase US5589376 Mammalian neural crest stem cells US5580777 Generation of neural precursor cell lines US5576209 Method for increasing the resistance of neural cells to ß-amyloid peptide toxicity US5521069 Genomic DNA exons having exons encoding human pituitary adenylate cyclase activity peptide with 38 amino acids residues(PACAP38) and a promoter thereof US5436128 Assay methods and compositions for detecting and evaluating the intracellular transduction of an extracellular signal US5429821 Non-fibrogenic high mannuronate alginate coated transplants, processes for their manufacture, and methods for their use US5411883 Proliferated neuron progenitor cell product and process US5362631 C-myb transfected T98G cells which produce GM-CSF and stem cell factor US5356807 Cultured cell line of adult diploid cells from human brain and meningeal tissue US5270191 Method for manipulation of the cell types of eukaryotes US5202120 Methods of reducing glial scar formation and promoting axon and blood vessel growth and/or regeneration through the use of activated immature astrocytes US5196315 Human neuronal cell line US4707448 Immortal line of human fetal glial cells US4017361 Process for obtaining continuous lines of tumoral cells in vitro ................................................................ 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