Easy To Use Patents Search & Patent Lawyer Directory

At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.

Searching: chemistry





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-5,968,847 Process for copper etch back
In the preparation of semiconductor structures having multilevel copper conductive features which must be interconnected, it is frequently desired to remove...
US-5,968,844 Method for etching nitride features in integrated circuit construction
A process for etching nitride layers in three steps is disclosed. The process comprises selecting a process chemistry of CF.sub.4 to CHF.sub.3 to set a...
US-5,968,736 Methods for recording the reaction history of a solid support
Encoded combinatorial chemistry is provided, where sequential synthetic schemes are recorded using organic molecules, which define choice of reactant, and stage,...
US-5,968,453 Reagent cartridge
A single compartment, non-wedged shaped reagent cartridge for use in an automated clinical chemistry analyzer. The cartridge comprises a hollow relatively narrow...
US-5,966,683 Apparatus and method for analyzing chemical system data
A power plant water chemistry analysis apparatus and method relies upon water chemistry sensors to obtain power plant water chemistry data characterizing the...
US-5,965,718 Analogs of sarcodictyin and eleutherobin
Sarcodictyin A and B, eleutherobin, and bioactive analogs thereof synthesized using solid phase and solution phase chemistries. The synthetic method employs an...
US-5,965,291 Perforated film for modifying the electrochemical surface area of a cell
A perforated fabric for modifying the effective electrochemical surface area of a cell is described. The size and pattern of perforations in the fabric determine...
US-5,962,215 Methods for testing the concentration of an analyte in a body fluid
Devices and methods for utilizing dry chemistry dye indicator systems for body fluid analysis such as glucose level in whole blood are provided by incorporating...
US-5,961,923 Matrices with memories and uses thereof
Combinations, called matrices with memories, of matrix materials that are encoded with an optically readable code are provided. The matrix materials are those...
US-5,961,791 Process for fabricating a semiconductor device
A via 42 is formed in an ILD layer 40 of a semiconductor device 30, using an etch chemistry which is highly selective to an underlying transition metal...
US-5,960,649 Ozonated laundry system including adapter and sparging rod
A system and method for treating laundry with ozone is provided including a controller that receives a load signal based on a wash load selection. In response to...
US-5,960,501 Ozonated laundry system with water re-use capability
A system and method for treating laundry with ozone is provided including a controller that receives a load signal based on a wash load selection. In response to...
US-5,958,969 Benzo[b]thiophene compounds, intermediates, formulations, and methods
This invention relates to the field of pharmaceutical and organic chemistry and provides benzothiophene compounds, intermediates, formulations, and methods.
US-5,958,702 Receptor-assisted combinatorial chemistry
This invention provides a method for preparing molecules that bind to a preselected receptor, whereby the receptor itself acts as an agent for either joining two...
US-5,958,521 Method of depositing a thermally sprayed coating that is graded between being machinable and being wear resistant
A method of thermally spraying a coating onto the interior of a cylindrical surface which coating is graded between enhanced optimal machinability and enhanced...
US-5,958,266 Method of plasma incision of matter with a specifically tuned radiofrequency electromagnetic field generator
A method of incising matter with a harmonious plasma cloud. An inexpensive radiofrequency generator and power amplifier generates an electromagnetic wave which...
US-5,955,591 Phosphotriester oligonucleotides, amidites and method of preparation
Oligonucleotides having bioreversible phosphate blocking groups can be used as pro drugs for the oligonucleotides. The bio-reversible blocking groups can be...
US-5,955,205 Stretch cling film and fabrication method
Multilayer thermoplastic stretch wrap film having substantial one-sided cling properties is made without the use of polymers with high levels of n-hexane...
US-5,952,246 Nitride selective, anisotropic Cl.sub.2 /He etch process
An etch process utilizing Cl.sub.2 /He chemistry for use in a silicon integrated circuit manufacturing process. The etch is a highly nitride selective,...
US-5,952,244 Methods for reducing etch rate loading while etching through a titanium nitride anti-reflective layer and an...
A method, in a plasma processing chamber, for etching through a selected portion of layers of a wafer stack, which comprises an anti-reflective layer and a...
US-5,952,183 Synthesis of estrogen-purine base and estrogen-mercapturate adducts and development of fluorescent probes and...
Estrogen-nucleoside, estrogen-guanine and estrogen-mercapturate adducts are potential biomarkers for determining susceptibility of animals to a number of...
US-5,950,063 Method of powder injection molding
Provided is a powder and binder system for manufacturing sintered parts from particulate material, and a method of injection molding parts for sintering. The...
US-5,948,796 Benzo[B]thiophene compounds, intermediates, formulations, and methods
This invention relates to the field of pharmaceutical and organic chemistry and provides benzothiophene compounds, intermediates, formulations, and methods.
US-5,948,701 Self-aligned contact (SAC) etching using polymer-building chemistry
A method for forming a via through a dielectric layer within a microelectronics fabrication. There is first provided a substrate employed within a...
US-5,947,911 Method and apparatus for reducing purge volume in a blood chemistry monitoring system
A method and apparatus for reducing the volume of fluid required to purge a patient's blood from a blood sampling site after the blood has been sampled for...
US-5,945,346 Chemical mechanical planarization system and method therefor
A chemical mechanical planarization tool that reduces a volume of polishing chemistry used in a wafer polishing process includes a rinse bar (87) for removing...
US-5,945,070 Reaction vessel filter for combinatorial chemistry or biological use
A filter tube for a reaction or other fluid vessel is disclosed which maintains the vessel under an inert gas atmosphere and maintains the integrity of the inert...
US-5,943,582 Method for forming DRAM stacked capacitor
The present invention discloses a method for forming DRAM stacked capacitors by utilizing a densified oxide layer as an etch-stop for the wet etching process of...
US-5,942,638 Method of functionalizing polycyclic silicones and the resulting compounds
A synthetic process for the selective preparation of reactive polyhedral oligomeric silsesquioxanes (POSS) as well as polyhedral oligomeric silicate (POS)...
US-5,942,007 Dry cleaning method and solvent
A dry cleaning system and method, in which specially designed or modified machinery is used in conjunction with a specific solvent which is derived from an...
US-5,939,576 Method of functionalizing polycyclic silicones and the compounds so formed
A synthetic process for the selective preparation of reactive polyhedral oligomeric silsesquioxanes (POSS) as well as polyhedral oligomeric silicate (POS)...
US-5,939,314 Distributed pore chemistry in porous organic polymers in tissue culture flasks
A method for making a biocompatible polymer article using a uniform atomic oxygen treatment is disclosed. The substrate may be subsequently optionally grated...
US-5,939,268 Combinatorial libraries of molecules and methods for producing same
This invention features methods of synthesizing combinatorial libraries of chemical compounds, and combinatorial libraries of chemical compounds formed by the...
US-5,939,220 Catalyst
A novel catalyst comprising a Pt--M alloy wherein M is one or more metals selected from the transition metal elements or from Groups IIIA or IVA of the Periodic...
US-5,935,845 Distributed pore chemistry in porous organic polymers
A method for making a biocompatible polymer article using a uniform atomic oxygen treatment is disclosed. The substrate may be subsequently optionally grated...
US-5,935,527 Automated system for polynucleotide synthesis and purification
A method and system for polynucleotide synthesis are provided which employ solid phase synthesis on a nonswellable porous polystyrene support by phosphoramidite...
US-5,934,359 Casting steel strip
Method of casting steel strip in which molten steel solidifies as a shell on a chilled casting surface (100). The casting surface (100) has a texture (101)...
US-5,932,711 Nucleic acid-containing polymerizable complex
Disclosed is a polymerizable complex containing a covalently attached nucleic acid molecule which, under appropriate conditions, is capable of copolymerization...
US-5,931,986 Method and apparatus for confinement of ions in the presence of a neutral gas
The present invention is an apparatus and method for combining ions with a neutral gas and flowing the mixture with a radial flow component through a magnetic...
US-5,930,677 Method for reducing microloading in an etchback of spin-on-glass or polymer
A method for forming a planarized interlevel dielectric layer without degradation due to the microloading effect from spin-on material etchback is described. A...
US-5,930,585 Collar etch method to improve polysilicon strap integrity in DRAM chips
In the manufacture of 16 Mbits DRAM chips, a polysilicon strap is used to provide an electrical contact between the drain region of the active NFET device and...
US-5,926,419 Silicon layer arrangement for last mask programmability
A method for fabricating an application specific integrated circuit (ASIC) from a multitude of silicon layers, including upper silicon layers and lower silicon...
US-5,925,562 Remotely programmable matrices with memories
Combinations, called matrices with memories, of matrix materials with remotely addressable or remotely programmable recording devices that contain at least one...
US-5,925,212 Apparatus and method for attaining repeatable temperature versus time profiles for plasma heated interactive...
The temperatures of scavenger-emitting kit parts in a high-density plasma (HDP) etching system are elevated to or close to respective steady state equilibrium...
US-5,922,608 Macromolecule sequencing packet and method of use
A method, apparatus and article for sequencing polypeptides and proteins ("macromolecules") utilizes a sequencing packet comprised of a plurality of substrates...
US-5,922,285 Integrated fluorescence-based biochemical sensor
An integrated biochemical sensor (200) for detecting the presence of one or more specific samples (240) having a device platform (355) with a light absorbing...
US-5,922,281 Surface treatment for micro-conduits employed in blood heat exchange system
Blood heat exchanger apparatus with improved heat exchanged capability and improved bonding of micro-conduit heat exchange fibers. The micro-conduit comprises a...
US-5,922,161 Surface treatment of polymers
This invention relates to a method of modifying or tailoring the surface of polymers and or polymer-based materials to control surface and interface chemistry...
US-5,919,870 Functional telechelic star polymers
Protected functional initiators have been demonstrated to polymerize dienes and alkenyl substituted aromatics. The resultant living anions were linked with a...
US-5,918,590 Heat cells
This invention relates to heat cells, based on a specific iron oxidation chemistry and having specific physical dimensions and fill characteristics. These heat...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | Next →

File A Patent Application

  • Protect your idea -- Don't let someone else file first. Learn more.

  • 3 Easy Steps -- Complete Form, application Review, and File. See our process.

  • Attorney Review -- Have your application reviewed by a Patent Attorney. See what's included.