William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7631467 | Magnet retention clip A magnet retention clip for assembling modular wall panels includes a magnet holder, prongs insertable into the wall panel and stabilizers outwardly of the magnet holder. ... | 12/15/2009 |
| 7278244 | Concrete stud wall system A concrete stud wall system includes elongated mounting strips having mounting brackets that are pressure inserted through longitudinally spaced slots in the outer flanges of the studs and tracks for attaching a reinforcing mesh and encapsulated by a poured concrete... | 10/09/2007 |
| 6935079 | Metal stud guard A rigid guard for a metal wall stud comprising a flat outer wall with apertures for accommodating fasteners to affix it to the outer side of a wall stud, a first pair of flanges extending perpendicularly from one edge of the outer wall at upper and lower ends of the... | 08/30/2005 |
| 6708459 | Sheet metal stud and composite construction panel and method A composite construction panel having a thin panel of concrete material and a reinforcing grid of sheet metal studs with embedment portions which are actually embedded into the concrete panel, each of the studs having a web, main web openings through the web, a righ... | 03/23/2004 |
| 6415572 | Adjustable protector shoe for tie down strap Protector shoe (10) is positioned between the loop (49) formed in a tie down strap (46) and the adjacent support plate (36, 38). The mounting flange (24) extends about a first edge (40) of the support plate (36) and the middle strip (28) of the tail (22) ... | 07/09/2002 |
| 6295782 | Stay-in-place form A stay-in-place composite form provides a strong and durable concrete structure. The form includes a composite shell having an inner wall surface defining an enclosure into which concrete may be poured and allowed to harden. The composite shell may be mad... | 10/02/2001 |
| 5522187 | Sloping roof with roofing tiles and tile hook for such a roof The roof tiles (1) of a sloping roof rest via a ridge on tile laths (2) and overlap one another in two directions. They are fixed with tile hooks (4) and each tile hook (4) comprises a first shaft section (7), which at the free end has a hook-shaped bend ... | 06/04/1996 |
| 5482395 | Clip connector for joining columns and beams to concrete A clip connector for joining column and beam members to concrete building panels is non-corrosive, and does not require bolts or pins to pass into the concrete panels. The connector is a non-corrosive steel clip having a substantially angular shape with t... | 01/09/1996 |
| 5425209 | Device for incorporating layer member in face construction of building A device for incorporating a layer member in a face construction of a building which is capable of employing a soft or flexible layer member as well as a rigid one, improving operation efficiency, ensuring safe operation at a height, and readily and preci... | 06/20/1995 |
| 5359151 | Construction stud protector plate A protector plate used in the construction industry for protecting electric wiring which passes through metal studs. The protector plate is formed from metal sheeting to create a face plate which has an attaching member connected thereto. The attaching me... | 10/25/1994 |
| 4649689 | Insulation fastener system An insulation system utilizes a plurality of insulation fasteners to support an insulation board or the like adjacent the roof-supporting framework/purlins of a building. Each fastener comprises a clip member with projecting shank with the former engageab... | 03/17/1987 |
| 4578922 | Wire impaling clip for gypsum panels Gypsum panels and the like are attached to "H" studs by a resilient, one-piece wire clip having talons which are anchored in the edge of a panel and a clamping portion which grips a flange of the stud.... | 04/01/1986 |
| 4438611 | Stud fasteners and wall structures employing same The present invention is directed to improved fasteners for securing insulation to a supporting structure, to a method of using the fasteners, and to combination wall structures obtained by such use. The fasteners are adapted to facilitate the securement ... | 03/27/1984 |
| 4112636 | Wallboard laminating clip A laminating clip for temporarily holding adjacent wallboards having first and second sides against a base member with said first sides facing toward the base member including a first portion for attachment to the base member, a second portion attached to... | 09/12/1978 |
| 4069636 | Insulation supporting strap An easily installable, elongated insulation supporting strap for supporting insulation batts or the like between roof purlins is provided which includes respective male and female connection ends allowing aligned, end-to-end interlocking of a plurality of... | 01/24/1978 |
| 3984958 | Roof batten assembly A batten assembly for use in sealing the edges of roofing sheets includes a plurality of clips secured to the roof at spaced intervals along the slope of the roof with upward extending legs which pass through longitudinal slots in outwardly extending flan... | 10/12/1976 |
| 3971224 | Method for erecting a pile wall adapted to take compressive forces and a pile wall produced by the method The invention starts from the known method of erecting a pile wall adapted to take compressive forces, from spaced piles and bridging piles cross-connected thereto and intended to close the initially free zones between the spaced piles.... | 07/27/1976 |