Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 7530549 | Articulating balcony railing system A curved railing system that does not use curved infill panels and has a continuous curved top rail. It uses a series of posts that follow the desired curve. The posts have a bottom rail and space to hold infill panels that may be glass, solid panels, perforated pan... | 05/12/2009 |
| 7267324 | Ranch fence An interlocking steel fencing system having posts and rails made from tubular steel, the posts and rails being either round or rectangular in shape, the posts having openings therein which correspond with the shape of a rail designed to be inserted therein, the end ... | 09/11/2007 |
| 7128308 | Modular barrier system for satisfying needs unique to a specific user Components and a system for limiting access and egress. A properly scaled barrier of the present invention meets varied requirements for applications that include: security, safety, order, privacy, and discipline. In one embodiment, pre-manufactured panels and conne... | 10/31/2006 |
| 7086642 | Rackabale gate for fence and method of producing such A rackable gate having a gate panel with spaced-apart rails connected to a plurality of first pickets and a second picket. The second picket attaches to the respective rails on a side edge opposing the attachment of the first pickets to the rail. Distal opposing end... | 08/08/2006 |
| 6905110 | Finished-stair-tread adapter for a modular railing system A modular railing system supports a plurality of rails in vertically-spaced configuration. The railing system includes a plurality of baluster units arranged between rail sets to support the rails. The baluster units include a plurality of rail supports grouped into... | 06/14/2005 |
| 6698725 | Slotted fence post cap A slotted cap for a corner or support post of a fence, particularly a chain link or "Cyclone" (trademark) or "Hurricane" (trademark) fence. In a preferred embodiment, the slotted fence post cap includes a cylindrical cap wall which is mounted on the upper... | 03/02/2004 |
| 6612551 | Plastic sheath products for studded steel T-posts, and production An extruded plastic sheath product is provided to cover studded steel T-posts and hence give fence lines or sign posts and improved, even aesthetic appearances. The plastic sheath product is formed with a series of internal projections which abut against ... | 09/02/2003 |
| 6494438 | Plastic porch or deck railing systems and component parts thereof Plastic railing systems include extruded hollow fiberglass reinforced top and bottom rail sections and newel posts, and hollow plastic balusters having locking tabs on one end adapted to be snap locked into mounting holes in a bottom wall of the top rail ... | 12/17/2002 |
| 6345475 | Stair guard Pivotably mounted barriers extending across a portion of and staggered in an alternating manner from opposite sides and spaced apart as to permit directed travel up or down stairs or staircase. Barriers extend across staircase to the extent that in additi... | 02/12/2002 |
| 6330998 | Plastic sheath products for studded steel T-posts, and production An extruded plastic sheath product is provided to cover studded steel T-posts and hence give fence lines or sign posts and improved, even aesthetic appearances. The plastic sheath product is formed with a series of internal projections which abut against ... | 12/18/2001 |
| 6231031 | Outdoor railing system and rails Top and bottom rails for an outdoor railing system, include a plurality of equally spaced recesses defined in a side of the rails into which spindle ends are fitted. Each of the recesses comprises a multi-sided configuration having an open side defined th... | 05/15/2001 |
| 6145814 | Device for mounting a handrail element on a post in particular for producing a staircase and a set provided therefor A device for mounting a handrail element on a post for producing a stair railing and the like has bearing surfaces provided on the handrail elements, spaced in a longitudinal direction, and forming a gap, a rotary part provided on an end on the post and r... | 11/14/2000 |
| 6017019 | Modular composite railing A modular railing including a plurality of upright posts and a plurality of composite hand rails extending between adjacent ones of the upright posts. The composite handrails each include a plastic outer shell and an internal metal reinforcing element ext... | 01/25/2000 |
| 5964452 | Fixing A combined mounting and blanking spigot for providing fixing between a rectangular cross-section tubular rail and a post, comprising a solid member having a height and width slightly less than that of the interior dimensions of the rail and a length suffi... | 10/12/1999 |
| 5699997 | Foldable playyard connection device A connection device for a playyard consists of a handle and two connectors. The handle is provided integrally with a block and a plurality of protrusions having a hole therein. A pair of connectors is each provided with a plurality of spaces for receiving... | 12/23/1997 |
| 5507473 | Guard rail post A guard rail post is molded from a plastic recycled material which is reinforced with a vertical and a horizontal reinforcing member embedded within an L-shaped plastic body.... | 04/16/1996 |
| 5452880 | Fence coupling The present invention relates to a coupling (10) for connecting railing members (170, 171) to post (14, 15). The coupling (10) has a mounting portion having two parts (16, 117) pivotally movable relative to one another and capable of being locked against ... | 09/26/1995 |
| 5277408 | Fence employing flat sided galvanized steel posts and channel parts A fence frame is disclosed that preferably comprises galvanized steel posts that provide an accessible flat surface or surfaces parallel with the surface of the transverse railings and through which are applied holding bolts for securing the post to adjoi... | 01/11/1994 |
| 5230500 | Pitch adjustable wooden balustrade A balustrade including a handrail supported on a row of balusters, each of which is attached with two cross bars at different heights, and a plurality of vertical axles respectively connected to the cross bars between each two adjacent balusters by connec... | 07/27/1993 |
| 5136770 | Corner modules and articulate connectors for balustrade handrail constructions and constructions incorporating the same, and methods for partial factory pre-fabrication and for on-site fabrication and installation of the same Corner modules have recessed, handrail-receiving mounting pockets bounded top and laterally by non-recessed boundary edge portions, but open at their bottom ends, and vertically taller than the end face of the handrail interval of steepest incline. The mo... | 08/11/1992 |
| 4989689 | Yard guard A yard guard is disclosed which may be attached to a gable roof just above the eaves on a house that is to be re-shingled. The yard guard is a frame L-shaped in cross section with a guard rail to prevent old roofing material from falling from the roof ont... | 02/05/1991 |
| 4979725 | Roof safety barrier supporting frame A triangular frame assembly is disclosed for supporting a safety barrier of boards above the edge of a roof during construction. The triangular assembly employs pivotal connections between a base and a lower stanchion member, between the base and a diagon... | 12/25/1990 |
| 4733851 | Stor-a-way fences A foldable fence including a plurality of fence sections pivoted of posts therebetween, each section comprising spaced apart rails that interfit at their ends with the ends of adjacent sections.... | 03/29/1988 |
| 4508320 | Fence system A total fence system for wire mesh fences is disclosed. An angle iron post which may serve as a gate, terminal or corner post is utilized. The post includes staples, preferably stamped out lancings which accommodate a slide-in tension bar. The tension bar... | 04/02/1985 |
| 4408749 | Variable pitch railing and system Balusters and rails are angularly adjustable after their assembly to fit the different pitches of stairways. To this end a rail is characterized by: (a) the rail having an elongated recess sunk in one lateral side thereof, and having at least one interior... | 10/11/1983 |
| 4240615 | Fence post with invertible sections A fence post comprising male and female members. Each member has a circumferential transverse shape of a portion of a plane geometric figure. A key on the male member is slidingly interlocked with a keyway on the female member to connect the members toget... | 12/23/1980 |