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Browse by Category: Main > Tools & Hardware
Class Information
Number: 451/921
Name: Abrading > "pad" for lens shaping tool
Description: Disclosure of an accessory to be used in abrading an optical lens to cushion a lens engaging portion to prevent undesired modification of the lens.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8668557 Optical grade surfacing tool Mar. 11, 2014
8628384 Polishing pad for eddy current end-point detection Jan. 14, 2014
8408976 Optical grade surfacing device Apr. 2, 2013
8123597 Polishing pad Feb. 28, 2012
8062103 High-rate groove pattern Nov. 22, 2011
7559829 Tool for surfacing an optical surface Jul. 14, 2009
7540801 Oscillating grinding machine Jun. 2, 2009
7442116 Chemical mechanical polishing pad Oct. 28, 2008
7278908 Polishing disk for a tool for the fine machining of optically active surfaces on spectacle lenses in particular Oct. 9, 2007
7223164 Optical surface-finishing tool May. 29, 2007
7217176 Polishing tool with several pressure zones May. 15, 2007
7189141 Polishing pad with transparent window having reduced window leakage for a chemical mechanical polishing apparatus Mar. 13, 2007
7108597 Polishing pad having grooves configured to promote mixing wakes during polishing Sep. 19, 2006
7066792 Shaped polishing pads for beveling microfeature workpiece edges, and associate system and methods Jun. 27, 2006
7040964 Polishing media stabilizer May. 9, 2006
7018274 Polishing pad having slurry utilization enhancing grooves Mar. 28, 2006
7014549 Polishing pad and method of making the same Mar. 21, 2006
6986706 Polishing pad and method of producing the same Jan. 17, 2006
6979249 CMP pad having isolated pockets of continuous porosity and a method for using such pad Dec. 27, 2005
6974372 Polishing pad having grooves configured to promote mixing wakes during polishing Dec. 13, 2005
6960120 CMP pad with composite transparent window Nov. 1, 2005
6955587 Grooved polishing pad and method Oct. 18, 2005
6929534 Polisher and polishing method Aug. 16, 2005
6913527 Edge-sealed pad for CMP process Jul. 5, 2005
6899602 Porous polyurethane polishing pads May. 31, 2005
6896585 Polishing pad with transparent window having reduced window leakage for a chemical mechanical polishing apparatus May. 24, 2005
6869336 Methods and compositions for chemical mechanical planarization of ruthenium Mar. 22, 2005
6843711 Chemical mechanical polishing pad having a process-dependent groove configuration Jan. 18, 2005
6832947 CMP pad with composite transparent window Dec. 21, 2004
6749485 Hydrolytically stable grooved polishing pads for chemical mechanical planarization Jun. 15, 2004
6729950 Chemical mechanical polishing pad having wave shaped grooves May. 4, 2004
6705928 Through-pad slurry delivery for chemical-mechanical polish Mar. 16, 2004
6645059 Device for retaining abrasive pad on lap in eyeglass lens making apparatus Nov. 11, 2003
6641463 Finishing components and elements Nov. 4, 2003
6575825 CMP polishing pad Jun. 10, 2003
6561886 Device for retaining abrasive pad on lap in eyeglass lens making apparatus May. 13, 2003
6530829 CMP pad having isolated pockets of continuous porosity and a method for using such pad Mar. 11, 2003
6524164 Polishing pad with transparent window having reduced window leakage for a chemical mechanical polishing apparatus Feb. 25, 2003
RE37997 Polishing pad with controlled abrasion rate Feb. 18, 2003
6491570 Polishing media stabilizer Dec. 10, 2002
6458018 Abrasive article suitable for abrading glass and glass ceramic workpieces Oct. 1, 2002
6390891 Method and apparatus for improved stability chemical mechanical polishing May. 21, 2002
6390890 Finishing semiconductor wafers with a fixed abrasive finishing element May. 21, 2002
6331137 Polishing pad having open area which varies with distance from initial pad surface Dec. 18, 2001
6254456 Modifying contact areas of a polishing pad to promote uniform removal rates Jul. 3, 2001
6217426 CMP polishing pad Apr. 17, 2001
6190746 Polishing cloth and a method for attaching/detaching the polishing cloth to/from a base plate of a polishing machine Feb. 20, 2001
6093085 Apparatuses and methods for polishing semiconductor wafers Jul. 25, 2000
6090475 Polishing pad, methods of manufacturing and use Jul. 18, 2000
6089963 Attachment system for lens surfacing pad Jul. 18, 2000

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