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Class Information
Number: 428/402
Name: Stock material or miscellaneous articles > Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof > Particulate matter (e.g., sphere, flake, etc.)
Description: Product comprising structurally defined or coated small grains or bits of matter.


Sub-classes under this class:

Class Number Class Name Patents
428/403 Coated 2,642
428/402.2 Microcapsule with fluid core (includes liposome) 902
428/402.24 Microcapsule with solid core (includes liposome) 580


Patents under this class:

Patent Number Title Of Patent Date Issued
7618565 Lipobeads and their production Nov. 17, 2009
7611774 Glass ceramic or glass element that can be subjected to great thermal loads and is decorated with a metallic color Nov. 3, 2009
7610959 Methods and materials for subterranean fluid forming barriers in materials surrounding wells Nov. 3, 2009
7604855 Kinematic images formed by orienting alignable flakes Oct. 20, 2009
7601423 Ethylene-based polymer microparticles, functional group-containing ethylene-based polymer microparticles, and catalyst carriers for manufacture thereof Oct. 13, 2009
7601422 Rounded-particle plastic powder in particular for application in laser sintering, method for production of such a powder and laser sintering process using such a powder Oct. 13, 2009
7601324 Method for synthesizing metal oxide Oct. 13, 2009
7601243 Method for conveying, mixing, and leveling dewatered pulp prior to drying Oct. 13, 2009
7597958 Black magnetic iron oxide particles having a specific dissolution of sulfur element Oct. 6, 2009
7595107 Algae resistant roofing system containing silver compounds, algae resistant shingles, and process for producing same Sep. 29, 2009
7589034 Treated activated carbon and process for making same Sep. 15, 2009
7588825 Embolic compositions Sep. 15, 2009
7588822 Absorbent articles surface cross-linked superabsorbent polymer particles made by a method of using ultraviolet radiation and brOnsted acids Sep. 15, 2009
7585935 Purified polymeric materials and methods of purifying polymeric materials Sep. 8, 2009
7585564 Post-deposition encapsulation of nanostructures: compositions, devices and systems incorporating same Sep. 8, 2009
7585443 Pelletized brominated anionic styrenic polymers and their preparation and use Sep. 8, 2009
7582354 Material composition Sep. 1, 2009
7579402 Superabsorbent polymer having delayed free water absorption Aug. 25, 2009
7579078 Temperature regulating cellulosic fibers and applications thereof Aug. 25, 2009
7579074 Writable and printable colloidal gold solution Aug. 25, 2009
7576903 Microcapsule, method of manufacturing microcapsule, electrophoretic device, and electric apparatus Aug. 18, 2009
7576138 Absorbent articles comprising surface cross-linked superabsorbent polymer particles made by a method using vacuum ultraviolet radiation Aug. 18, 2009
7575803 Inorganic compound particle and process for preparation thereof Aug. 18, 2009
7575645 Fe-Ni-Mo soft magnetic flaky powder and magnetic composite material containing soft magnetic powder Aug. 18, 2009
7569618 Absorbent articles comprising surface cross-linked superabsorbent polymer particles made by a method using ultraviolet radiation Aug. 4, 2009
7569273 Thermoplastic powder material system for appearance models from 3D printing systems Aug. 4, 2009
7569254 Nanocomposite materials comprising high loadings of filler materials and an in-situ method of making such materials Aug. 4, 2009
7569202 Silicon nanosponge particles Aug. 4, 2009
7569201 Method of manufacturing honeycomb structure and silicon carbide particle for manufacturing the same Aug. 4, 2009
7566497 Method for forming pigment pseudoparticles Jul. 28, 2009
7566494 Insulated conductive particles and anisotropic conductive adhesive film using the same Jul. 28, 2009
7563733 Composite material Jul. 21, 2009
7563507 Pyridine and related ligand compounds, functionalized nanoparticulate composites and methods of preparation Jul. 21, 2009
7563501 Integral pigments in composite surfaces Jul. 21, 2009
7563457 Nanoparticle assembled hollow spheres Jul. 21, 2009
7560160 Multifunctional particulate material, fluid, and composition Jul. 14, 2009
7560085 Porous silicon particles Jul. 14, 2009
7553465 Cerium oxide powder and cerium oxide dispersion Jun. 30, 2009
7550555 Sintering ultrahigh molecular weight polyethylene Jun. 23, 2009
7550200 Microencapsulation of biocides and antifouling agents Jun. 23, 2009
7544720 Porous polymeric materials and method of production thereof Jun. 9, 2009
7541088 Laser-markable film Jun. 2, 2009
7537833 Pyrogenically produced silicon dioxide powder and dispersion thereof May. 26, 2009
7537832 Superabsorbent material and absorbent articles containing said material May. 26, 2009
7534490 Composite nanoparticles, nanoparticles and methods for producing same May. 19, 2009
7534489 Coated composites of magnetic material and quantum dots May. 19, 2009
7534488 Graded core/shell semiconductor nanorods and nanorod barcodes May. 19, 2009
7534287 Porous sintered composite materials May. 19, 2009
7531334 Polymeric microcarriers for cell culture functions May. 12, 2009
7531149 Synthetic control of metal oxide nanocrystal sizes and shapes May. 12, 2009



 
 
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