Patents by Inventor Wayne L. Liedtke
Wayne L. Liedtke 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: 8084665Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: GrantFiled: February 25, 2009Date of Patent: December 27, 2011Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson
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Publication number: 20090177136Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: ApplicationFiled: February 25, 2009Publication date: July 9, 2009Inventors: Wayne L. Liedtke, Richard L. Jacobson
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Patent number: 7518031Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: GrantFiled: February 24, 2006Date of Patent: April 14, 2009Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson
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Patent number: 7030288Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: GrantFiled: December 30, 2004Date of Patent: April 18, 2006Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson
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Patent number: 6838589Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: GrantFiled: February 19, 2003Date of Patent: January 4, 2005Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson
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Publication number: 20040162512Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson
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Patent number: 6436432Abstract: A wound dressing and delivery system comprising carrier frame that overlaps a heavy absorbent pad on a thin backing of the wound dressing (with the backing sandwiched between the pad and carrier frame) so that the carrier frame and absorbent pad support (e.g., rigidify) the backing to facilitate handling. The carrier frame also has a window over the absorbent pad. Adhesive is provided one major surface of the backing, and the absorbent pad is provided on this major surface. The carrier frame is provided on the opposite major surface to the absorbent pad. The backing is preferably a very thin transparent or translucent elastic polymeric film, and the absorbent pad is relative thick, heavy and stiff and preferably includes hydrocolloid or hydrogel materials. Slits may be provided in the carrier frame to permit one of more portions of the frame to be removed from the backing without removing the entire frame from the backing.Type: GrantFiled: June 6, 2001Date of Patent: August 20, 2002Assignee: 3M Innovative Properties CompanyInventors: Steven B. Heinecke, Wayne L. Liedtke
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Publication number: 20010027285Abstract: A wound dressing and delivery system comprising carrier frame that overlaps a heavy absorbent pad on a thin backing of the wound dressing (with the backing sandwiched between the pad and carrier frame) so that the carrier frame and absorbent pad support (e.g., rigidify) the backing to facilitate handling. The carrier frame also has a window over the absorbent pad. Adhesive is provided one major surface of the backing, and the absorbent pad is provided on this major surface. The carrier frame is provided on the opposite major surface to the absorbent pad. The backing is preferably a very thin transparent or translucent elastic polymeric film, and the absorbent pad is relative thick, heavy and stiff and preferably includes hydrocolloid or hydrogel materials. Slits may be provided in the carrier frame to permit one of more portions of the frame to be removed from the backing without removing the entire frame from the backing.Type: ApplicationFiled: June 6, 2001Publication date: October 4, 2001Applicant: 3M Innovative Properties CompanyInventors: Steven B. Heinecke, Wayne L. Liedtke
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Patent number: 6264976Abstract: A wound dressing and delivery system comprising carrier frame that overlaps a heavy absorbent pad on a thin backing of the wound dressing (with the backing sandwiched between the pad and carrier frame) so that the carrier frame and absorbent pad support (e.g., rigidify) the backing to facilitate handling. The carrier frame also has a window over the absorbent pad. Adhesive is provided one major surface of the backing, and the absorbent pad is provided on this major surface. The carrier frame is provided on the opposite major surface to the absorbent pad. The backing is preferably a very thin transparent or translucent elastic polymeric film, and the absorbent pad is relative thick, heavy and stiff and preferably includes hydrocolloid or hydrogel materials. Slits may be provided in the carrier frame to permit one of more portions of the frame to be removed from the backing without removing the entire frame from the backing.Type: GrantFiled: November 29, 1999Date of Patent: July 24, 2001Assignee: 3M Innovative Properties CompanyInventors: Steven B. Heinecke, Wayne L. Liedtke
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Patent number: D503982Type: GrantFiled: February 19, 2003Date of Patent: April 12, 2005Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson
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Patent number: D511005Type: GrantFiled: May 27, 2004Date of Patent: October 25, 2005Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson, David R. Holm
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Patent number: D516729Type: GrantFiled: May 27, 2004Date of Patent: March 7, 2006Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson
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Patent number: D493230Type: GrantFiled: February 19, 2003Date of Patent: July 20, 2004Assignee: 3M Innovative Properties CompanyInventors: Wayne L. Liedtke, Richard L. Jacobson, David R. Holm