Patents by Inventor Stephen L. Lieder
Stephen L. Lieder 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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Publication number: 20220177671Abstract: The disclosed retroreflective element includes a polymeric core that is loaded with a plurality of first beads and second beads distributed at the perimeter of the core. The first beads are different than the second beads. Because of the beads in the core, the retroreflective element remains useful for returning light even after portions of the core begins to wear away. Further, when the retroreflective elements get wet, water will settle to the bottom of the perimeter of the core. Therefore, using the second beads with a refractive index suited for wet conditions, while the first beads have a refractive index suited for dry conditions allows the retroreflective element to be useful in both wet and dry conditions even while the retroreflective element wears during use.Type: ApplicationFiled: February 25, 2022Publication date: June 9, 2022Inventors: Matthew D. Wilding, Stephen L. Lieder, Eugene H. Carlson, Kenton D. Budd, Joseph D. Engebretson
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Patent number: 11353640Abstract: The disclosed retroreflective element includes a highly durable core with an ionic copolymer and a plurality of beads. These disclosed retroreflective properties remain intact even after continued application of external forces and stresses. Further, the ionic copolymer allows for beads to be loaded into the ionic copolymer of the core, securely disposed around the perimeter of the core, or both.Type: GrantFiled: September 6, 2016Date of Patent: June 7, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Matthew D. Wilding, Stephen L. Lieder, Eugene H. Carlson
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Publication number: 20220170218Abstract: The present disclosure generally relates to non-conformable thermoplastic pavement marking tapes comprising a backing and an adhesive layer adjacent to the backing. In some embodiments, the backing includes an ionic copolymer. In other embodiments, the non-conformable backing has an inelastic deformation of less than 10% at 25° C. In some embodiments, the pavement marking tape is heat-moldable.Type: ApplicationFiled: December 1, 2020Publication date: June 2, 2022Inventors: Gregg A. Patnode, James P. Endle, Eugene H. Carlson, Matthew D. Wilding, Stephen L. Lieder
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Patent number: 11286368Abstract: The disclosed retroreflective element includes a polymeric core that is loaded with a plurality of first beads and second beads distributed at the perimeter of the core. The first beads are different than the second beads. Because of the beads in the core, the retroreflective element remains useful for returning light even after portions of the core begins to wear away. Further, when the retroreflective elements get wet, water will settle to the bottom of the perimeter of the core. Therefore, using the second beads with a refractive index suited for wet conditions, while the first beads have a refractive index suited for dry conditions allows the retroreflective element to be useful in both wet and dry conditions even while the retroreflective element wears during use.Type: GrantFiled: November 16, 2020Date of Patent: March 29, 2022Assignee: 3M Innovative Properties CompanyInventors: Matthew D. Wilding, Stephen L. Lieder, Eugene H. Carlson, Kenton D. Budd, Joseph D. Engebretson
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Publication number: 20210070962Abstract: The disclosed retroreflective element includes a polymeric core that is loaded with a plurality of first beads and second beads distributed at the perimeter of the core. The first beads are different than the second beads. Because of the beads in the core, the retroreflective element remains useful for returning light even after portions of the core begins to wear away. Further, when the retroreflective elements get wet, water will settle to the bottom of the perimeter of the core. Therefore, using the second beads with a refractive index suited for wet conditions, while the first beads have a refractive index suited for dry conditions allows the retroreflective element to be useful in both wet and dry conditions even while the retroreflective element wears during use.Type: ApplicationFiled: November 16, 2020Publication date: March 11, 2021Inventors: Matthew D. Wilding, Stephen L. Lieder, Eugene H. Carlson, Kenton D. Budd, Joseph D. Engebretson
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Patent number: 10889947Abstract: The present disclosure generally relates to non-conformable thermoplastic pavement marking tapes comprising a backing and an adhesive layer adjacent to the backing. In some embodiments, the backing includes an ionic copolymer. In other embodiments, the non-conformable backing has an inelastic deformation of less than 10% at 25° C. In some embodiments, the pavement marking tape is heat-moldable.Type: GrantFiled: June 16, 2016Date of Patent: January 12, 2021Inventors: Gregg A. Patnode, James P. Endle, Eugene H. Carlson, Matthew D. Wilding, Stephen L. Lieder
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Patent number: 10858496Abstract: The disclosed retroreflective element includes a polymeric core that is loaded with a plurality of first beads and second beads distributed at the perimeter of the core. The first beads are different than the second beads. Because of the beads in the core, the retroreflective element remains useful for returning light even after portions of the core begins to wear away. Further, when the retroreflective elements get wet, water will settle to the bottom of the perimeter of the core. Therefore, using the second beads with a refractive index suited for wet conditions, while the first beads have a refractive index suited for dry conditions allows the retroreflective element to be useful in both wet and dry conditions even while the retroreflective element wears during use.Type: GrantFiled: September 6, 2016Date of Patent: December 8, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Matthew D. Wilding, Stephen L. Lieder, Eugene H. Carlson, Kenton D. Budd, Joseph D. Engebretson
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Publication number: 20200241180Abstract: The disclosed retroreflective element includes a highly durable core with an ionic copolymer and a plurality of beads. These disclosed retroreflective properties remain intact even after continued application of external forces and stresses. Further, the ionic copolymer allows for beads to be loaded into the ionic copolymer of the core, securely disposed around the perimeter of the core, or both.Type: ApplicationFiled: September 6, 2016Publication date: July 30, 2020Inventors: Matthew D. Wilding, Stephen L. Lieder, Eugene H. Carlson
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Publication number: 20180371713Abstract: The present disclosure generally relates to non-conformable thermoplastic pavement marking tapes comprising a backing and an adhesive layer adjacent to the backing. In some embodiments, the backing includes an ionic copolymer. In other embodiments, the non-conformable backing has an inelastic deformation of less than 10% at 25° C. In some embodiments, the pavement marking tape is heat-moldable.Type: ApplicationFiled: June 16, 2016Publication date: December 27, 2018Inventors: Gregg A. Patnode, James P. Endle, Eugene H. Carlson, Matthew D. Wilding, Stephen L. Lieder
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Publication number: 20180291175Abstract: The disclosed retroreflective element includes a polymeric core that is loaded with a plurality of first beads and second beads distributed at the perimeter of the core. The first beads are different than the second beads. Because of the beads in the core, the retroreflective element remains useful for returning light even after portions of the core begins to wear away. Further, when the retroreflective elements get wet, water will settle to the bottom of the perimeter of the core. Therefore, using the second beads with a refractive index suited for wet conditions, while the first beads have a refractive index suited for dry conditions allows the retroreflective element to be useful in both wet and dry conditions even while the retroreflective element wears during use.Type: ApplicationFiled: September 6, 2016Publication date: October 11, 2018Inventors: Matthew D. Wilding, Stephen L. Lieder, Eugene H. Carlson, Kenton D. Budd, Joseph D. Engebretson
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Patent number: 6514892Abstract: Transparent solid, fused microspheres are provided. In one embodiment, the microspheres contain alumina, zirconia, and silica in a total content of at least about 70% by weight, based on the total weight of the solid, fused microspheres, wherein the total content of alumina and zirconia is greater than the content of silica, and further wherein the microspheres have an index of refraction of at least about 1.6 and are useful as lens elements.Type: GrantFiled: May 2, 2000Date of Patent: February 4, 2003Assignee: 3M Innovative Properties CompanyInventors: Toshihiro Kasai, Kenton D. Budd, Stephen L. Lieder, James A. Laird, Chikafumi Yokoyama, Toshinori Naruse, Kenji Matsumoto, Hirohiko Ono
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Patent number: 6511739Abstract: Transparent solid, fused microspheres are provided. In one embodiment, the microspheres contain alumina, zirconia, and silica in a total content of at least about 70% by weight, based on the total weight of the solid, fused microspheres, wherein the total content of alumina and zirconia is greater than the content of silica, and further wherein the microspheres have an index of refraction of at least about 1.6 and are useful as lens elements.Type: GrantFiled: April 30, 2001Date of Patent: January 28, 2003Assignee: 3M Innovative Properties CompanyInventors: Toshihiro Kasai, Kenton D. Budd, Stephen L. Lieder, James A. Laird, Chikafumi Yokoyama, Toshinori Naruse, Kenji Matsumoto, Hirohiko Ono
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Patent number: 6458512Abstract: Encapsulated electroluminescent phosphor particles and a method of making same. Each electroluminescent phosphor particle is encapsulated by a substantially transparent metal oxynitride coating. The coating provides the phosphor particle with reduced sensitivity to humidity accelerated decay.Type: GrantFiled: October 13, 1998Date of Patent: October 1, 2002Assignee: 3M Innovative Properties CompanyInventors: Kenton D. Budd, Moses M. David, Stephen L. Lieder, Kyung H. Moh
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Patent number: 6335083Abstract: Transparent solid, fused microspheres are provided. In one embodiment, the microspheres contain alumina, zirconia, and silica in a total content of at least about 70% by weight, based on the total weight of the solid, fused microspheres, wherein the total content of alumina and zirconia is greater than the content of silica, and further wherein the microspheres have an index of refraction of at least about 1.6 and are useful as lens elements.Type: GrantFiled: April 17, 1998Date of Patent: January 1, 2002Assignee: 3M Innovative Properties CompanyInventors: Toshihiro Kasai, Kenton D. Budd, Stephen L. Lieder, James A. Laird, Chikafumi Yokoyama, Toshinori Naruse, Kenji Matsumoto, Hirohiko Ono
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Publication number: 20010030811Abstract: Transparent solid, fused microspheres are provided. In one embodiment, the microspheres contain alumina, zirconia, and silica in a total content of at least about 70% by weight, based on the total weight of the solid, fused microspheres, wherein the total content of alumina and zirconia is greater than the content of silica, and further wherein the microspheres have an index of refraction of at least about 1.6 and are useful as lens elements.Type: ApplicationFiled: April 30, 2001Publication date: October 18, 2001Applicant: 3M Innovative Properties CompanyInventors: Toshihiro Kasai, Kenton D. Budd, Stephen L. Lieder, James A. Laird, Chikafumi Yokoyama, Toshinori Naruse, Kenji Matsumoto, Hirohiko Ono