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 |
| 7185609 | Hog farrowing system for use in a cold environment and method of use A hog farrowing system for use in a cold environment includes a building providing protection from weather elements. The farrowing boxes have an entrance to permit free ingress and egress of female hogs but restrain the piglets. An alley is provided outside the boxe... | 03/06/2007 |
| 7178484 | Apparatus for raising a sow in a farrowing crate In a farrowing pen which includes a pit and over the pit a first floor portion on which the sow can stand and lie and two further floor portions on each side of the first floor portion for receiving piglets of the sow and confining walls for locating the sow on the ... | 02/20/2007 |
| 7165509 | Hog farrowing system for use in a cold environment and method of use A hog farrowing system for use in a cold environment includes a building providing protection from weather elements. The farrowing boxes have an entrance to permit free ingress and egress of female hogs but restrain the piglets. An alley is provided outside the boxe... | 01/23/2007 |
| 6571741 | Sty for sows having piglets A sty for sows having piglets is described. The sty may be built having the same area requirements as for sties for bounded sows, but may be used for untethered sows. This takes place in that a rectangular sty department is divided by a diagonal wall whic... | 06/03/2003 |
| 6382135 | Pig pen A pig pen has side walls joined together by end walls to form a substantially rectangular enclosure. An angled divider is pivotable inside the pen, having a first end pivotably arranged on a pivot on one end wall and second end attachable to any one of a ... | 05/07/2002 |
| 6116190 | Heat lamp for a farrowing pen A heat lamp for a pig farrowing crate comprising an elongated housing having an elongated halogen bulb disposed therein at the upper end thereof with the longitudinal axis of the bulb being parallel to the longitudinal axis of the divider panel upon which... | 09/12/2000 |
| 6036176 | Weldless barrier construction A barrier including a plurality of elongate construction elements extending along a first axis and spaced from each other along a second axis substantially perpendicular to the first axis, the construction elements being telescopically extensible along th... | 03/14/2000 |
| 5878695 | Extendible hog gate and confinement facility gate system An improved adjustable hog gate for use in forming pens is provided with a stationary section and an adjustable section which may be extended from, or retracted onto, the stationary section. The stationary section is bounded by an end plate which receives... | 03/09/1999 |
| 5809937 | Farrowing crate A farrowing crate is disclosed. The farrowing crate includes an end support and an opposed end support. Back and front portions extend therebetween. Back and front portions includes top and bottom rails and a plurality of bowed bars extending therebetween... | 09/22/1998 |
| 5622138 | Multi-crate pig farrowing facility An artificial sow apparatus that substitutes for a divider panel between the creep areas of adjacent farrowing crates and provides both heat and alternative food and liquid in close association with one another is described in two embodiments. In both emb... | 04/22/1997 |
| 4996944 | Kennel accessory A kennel accessory formed of PVC tubing and having a peripheral rail portion for releasable attachment to the inside surface of a portable dog kennel base portion and having legs thereon maintaining the rail elevated from the kennel floor. The rail provid... | 03/05/1991 |
| 4700661 | Swine farrowing system A one sided creep area farrowing crate fabricated principally from flat material, sheet metal, plastic, wood, etc., has a molded sow pen entrance door with integral rump guard and a longitudinal sheet metal barrier separating the sow pen from the litter c... | 10/20/1987 |
| 4462336 | Farrowing pen for domestic animals A farrowing pen having a central mother pen and newborn pens provided on each side of the mother pen, the floor height of the mother pen is higher than those of the newborn pens, and the width of the mother pen is the minimum required to allow a mother an... | 07/31/1984 |
| 4351272 | Anti-crushing bar assembly for pig farrowing crates When a sow lies down in a conventional pig farrowing crate, piglets are often crushed as they are unable to move out of the way fast enough. This invention consists of an inwardly curved bar pivoted by the outer ends thereof between a pair of supports ext... | 09/28/1982 |
| 4345547 | Crate crib attachment A crate crib attachment (10) is disclosed which is mounted by means of a plurality of adjustable mounting brackets (30) upon a topmost end portion of a farrowing crate (20). Baby piglets placed within the crib attachment are separated from the mother pig ... | 08/24/1982 |
| 4287855 | Farrowing pen A farrowing pen is provided for accommmodating and confirming a sow or the like within a given space wherein the confined sow is permitted limited movement within the space without causing accidental injury or death to her piglets. At least one of the elo... | 09/08/1981 |
| 4233940 | Livestock farrowing apparatus A rectangular farrowing crate is provided with an elongated hollow feed tube arranged with its open upper end adjacent the rearward end of the crate and its lower end in communication with a feed trough situated adjacent the forward end of the crate where... | 11/18/1980 |
| 3941093 | Portable farrowing bed A farrowing bed for disposition within a hog house is provided and the bed comprises an elongated frame-like structure including a first pair of opposite side longitudinal members rigidly interconnected at corresponding opposite ends and adapted to rest u... | 03/02/1976 |