Patents by Inventor David P. Swanson
David P. Swanson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11960683Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 nm?L2?L1?50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.Type: GrantFiled: May 4, 2021Date of Patent: April 16, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Bharat R. Acharya, Robert D. Taylor, Joseph P. Attard, Benjamin J. Forsythe, David T. Yust, Matthew E. Sousa, Jason S. Petaja, Anthony M. Renstrom, William Blake Kolb, Matthew S. Cole, Matthew S. Stay, Matthew R. D. Smith, Jeremy O. Swanson, Tri D. Pham, David A. Rosen, Qunyi Chen, Lisa A. DeNicola, Quinn D. Sanford, Carl A. Stover, Lin Zhao, Gilles J. Benoit
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Patent number: 10792383Abstract: A method of disinfecting a medical device comprises three steps. First, a disinfectant is contacted with a process indicator and the medical device. The disinfectant comprises at least one aldehyde. The process indicator contains a synthetic amine-containing compound disposed on a substrate. The synthetic amine-containing compound comprises at least one of primary amino groups or secondary amino groups, and is reactive with the disinfectant to form at least one adduct. The synthetic amine-containing compound and the medical device are in fluid communication through the disinfectant. A predetermined disinfectant exposure criterion exists for contacting the disinfectant with the medical device. Second, the process indicator is spectrally observed and at least one parameter is obtained therefrom that is predictive of the predetermined disinfectant exposure criterion. The third step is determining that the predetermined disinfectant exposure criterion has been achieved.Type: GrantFiled: April 25, 2017Date of Patent: October 6, 2020Assignee: 3M Innovative Properties CompanyInventors: Naiyong Jing, Ryan T. Woldt, Wensheng Xia, Kevin D. Landgrebe, Timothy J. Nies, Bryan A. Baker, Semra Colak Atan, Gary W. Jorgensen, Giuseppe M. Bommarito, David P. Swanson, George W. Griesgraber, Ranjani V. Parthasarathy
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Publication number: 20190105416Abstract: A method of disinfecting a medical device comprises three steps. First, a disinfectant is contacted with a process indicator and the medical device. The disinfectant comprises at least one aldehyde. The process indicator contains a synthetic amine-containing compound disposed on a substrate. The synthetic amine-containing compound comprises at least one of primary amino groups or secondary amino groups, and is reactive with the disinfectant to form at least one adduct. The synthetic amine-containing compound and the medical device are in fluid communication through the disinfectant. A predetermined disinfectant exposure criterion exists for contacting the disinfectant with the medical device. Second, the process indicator is spectrally observed and at least one parameter is obtained therefrom that is predictive of the predetermined disinfectant exposure criterion. The third step is determining that the predetermined disinfectant exposure criterion has been achieved.Type: ApplicationFiled: April 25, 2017Publication date: April 11, 2019Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: NAIYONG JING, RYAN T. WOLDT, WENSHENG XIA, KEVIN D. LANDGREBE, TIMOTHY J. NIES, BRYAN A. BAKER, SEMRA COLAK ATAN, GARY W. JORGENSEN, GIUSEPPE M. BOMMARITO, DAVID P. SWANSON, GEORGE W. GRIESGRABER, RANJANI V. PARTHASARATHY
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Patent number: 9586059Abstract: A facility for presenting a visual user interface for guiding the performance of a process relating to a patient localization and tracking system is described. The facility displays the user interface in a first state that corresponds to a first process task in an ordered sequence of process tasks. Each time the process task to which the displayed state of the user interface corresponds is completed, the facility redisplays the user interface in a state corresponding to a process task following the process task to which the displayed state of the user interface corresponds.Type: GrantFiled: July 25, 2005Date of Patent: March 7, 2017Assignee: Varian Medical Systems, Inc.Inventors: Matthew A. Herron, Brian W. Epps, Kevin G. Rolfes, David P. Swanson, Luis R. Retana
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Patent number: 7758712Abstract: An elastic composite article and methods of manufacturing the same are disclosed. The elastic composite article includes a pair of coverwebs, a plurality of elastic filaments located between the pair of coverwebs. One or both of the pair of coverwebs is a nonwoven fibrous coverweb with a tear pattern of weakened areas formed therein. The tear patterns are formed before the coverwebs are attached to each other to form the elastic composite article.Type: GrantFiled: October 30, 2006Date of Patent: July 20, 2010Assignee: 3M Innovative Properties CompanyInventors: Robert J. Maki, David P. Swanson
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Patent number: 7135213Abstract: An elastic composite article and methods of manufacturing the same are disclosed. The elastic composite article includes a pair of coverwebs, a plurality of elastic filaments located between the pair of coverwebs. One or both of the pair of coverwebs is a nonwoven fibrous coverweb with a tear pattern of weakened areas formed therein. The tear patterns are formed before the coverwebs are attached to each other to form the elastic composite article.Type: GrantFiled: July 31, 2003Date of Patent: November 14, 2006Assignee: 3M Innovative Properties CompanyInventors: Robert J. Maki, David P. Swanson
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Patent number: 6383958Abstract: Nonwoven sheet materials, and adhesive articles formed therefrom are provided that are made with fibers, preferably tensilized nonfracturable staple fibers, and binder fibers, and formed from a combination of interbonding, smooth roll calendering, and pattern embossing techniques. These sheet materials are especially useful as tape backings that are finger tearable in the cross web and the down web directions and also possess a number of other desirable properties, including acceptable tensile strength and enhanced overtaping, for example. A nonwoven sheet material, and adhesive article including the same, can include an embossed pattern having a variety of discontinuous configurations to enhance tearing properties in both the down web and cross web directions.Type: GrantFiled: August 13, 1999Date of Patent: May 7, 2002Inventors: David P. Swanson, Robert J. Maki, Elda G. Bloemendal
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Patent number: 6215930Abstract: A fiber optic cable having a plurality of buffer tubes. Within at least one of the buffer tubes is a plurality of main fibers. Within the cable outer sheath, the main fibers are factory-spliced with optical splitters at predetermined distances. Distribution fibers are factory-spliced to the outputs of the optical splitters. The distribution fibers reside within distribution buffer tubes, and are available for access at substantially any location along the length of the fiber optic cable. A certain number of the distribution fibers from a particular optical splitter extend in an upstream direction of the fiber cable, and the remaining distribution fibers from that optical splitter extend in a downstream direction.Type: GrantFiled: May 11, 1998Date of Patent: April 10, 2001Assignee: Bellsouth Intellectual Property Management CorporationInventors: Daniel L. Estes, David P. Swanson, David W. Levenson
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Patent number: 5695853Abstract: A high visibility fabric includes a web of fibrous material and a fluorescent layer. The web has first and second major surfaces, and the fluorescent layer includes fluorescent pigment in a crosslinked resin. The resin penetrates into the web to surround the fibers and is bonded thereto, but the fluorescent pigment is concentrated at the first major surface at a level greater than at the second major surface. Because the pigment concentrates at the one surface, considerably less pigment is used in producing a fluorescent colored fabric. The fabric can be used to form a safety vest, and retroreflective sheeting can be placed on the vest to further enhance visibility.Type: GrantFiled: November 13, 1995Date of Patent: December 9, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: Britton G. Billingsley, Vera L. Lightle, David P. Swanson
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Patent number: 5577494Abstract: A heat and moisture exchange media and device is provided from structural matrix fibers and superabsorbent fibers.Type: GrantFiled: August 10, 1994Date of Patent: November 26, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Maurice H. Kuypers, Corazon C. Brizuela, Lawrence W. Craighead, David P. Swanson
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Patent number: 5478628Abstract: A high visibility fabric having a non-woven web material with a fluorescent layer. The fluorescent pigment concentration in the fabric is greater proximate a designated fabric outer surface than at other outer surfaces of the fabric. The fabric is used for manufacturing safety vests, signage, and other articles requiring high visibility.Type: GrantFiled: May 9, 1994Date of Patent: December 26, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Britton G. Billingsley, Vera L. Lightle, David P. Swanson, Claus Jansen