...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7597031 | Driving tool having rotatable coupling A driving tool includes a tool stem having a non-circular spatial engaging member and having one or more flat surfaces, a tool shank having a non-circular socket opening and having one or more curved surfaces for pivotally receiving the spatial engaging member of th... | 10/06/2009 |
| 7481135 | Hand tool with adjustable head A hand tool includes a head that is adjustable to a plurality of positions. The head is pivotally mounted to a tool body at a pivot axis. A bearing structure is attached at the pivot axis by a hub or fastener, about which the head may be adjusted. An actuator is pos... | 01/27/2009 |
| 7434496 | Screwdriver handle A screwdriver handle includes first and second handle parts each having an end face with a pivotal coupling portion. The second handle part is pivotable between two positions relative to the first handle part such that the screwdriver handle is switchable between an... | 10/14/2008 |
| 7430943 | Driving tool having rotatable coupling A driving tool includes a tool stem having a non-circular spatial engaging member and having one or more flat surfaces, a tool shank having a non-circular socket opening and having one or more curved surfaces for pivotally receiving the spatial engaging member of th... | 10/07/2008 |
| 7424839 | Wrench A wrench has a body, a head and at least one pivotal device. The body has two arms separately formed on a distal end of the body and a mounting recess formed between the two arms. Each arm has a hole defined through the arm. The head is rotatably and replaceably mou... | 09/16/2008 |
| 7415911 | Adjustable tools Adjustable tools which may be linked through a coupling so that the tool and the handle are rotatable relative to each other in a released condition and locked relative to each other in a locked position. The tool and the handle may thus be adjusted to have the tool... | 08/26/2008 |
| 7401538 | F figure wrench This invention relates to an F figure wrench that comprises a holding rod, a moving part, a turning rod and a driving part. At one end of the holding rod, a concavity is made and two lugs are implemented; the concavity is made as a guide hole to accommodate the movi... | 07/22/2008 |
| 7380482 | High-strength ratchet structure for ratchet wrench A high-strength ratchet structure for ratchet wrench is disclosed to include a driving block with two transverse sliding grooves, two pairs of directional block members respectively movably mounted in the sliding grooves of the driving block, two spring members resp... | 06/03/2008 |
| 7367249 | Quick release device of a socket wrench A quick release device of a socket wrench has a press rod and a push rod disposed in a socket plug so that the push rod can press against the press rod and the press rod can be pushed and returned toward either side. Thus, a locking steel ball can be tightly pressed... | 05/06/2008 |
| 7363839 | Driving tool having rotatable coupling A driving tool includes a tool stem having a non-circular spatial engaging member and having one or more flat surfaces, a tool shank having a non-circular socket opening and having one or more curved surfaces for pivotally receiving the spatial engaging member of th... | 04/29/2008 |
| 7347127 | Screwdriver handle A screwdriver handle includes a first handle part and a second handle part. An axle is formed on an end face of the first handle part and includes two receptacles each receiving a positioning member. The second handle part includes an end face pivotally connected to... | 03/25/2008 |
| 7343836 | Bender wrench A bender wrench for removing fasteners from hard to reach places. The bender wrench includes a wrench having a pair of first ends coupled to a plurality of head members that are positionable with respect to the handle. Each of the head members is designed to remove ... | 03/18/2008 |
| 7343837 | Multi-plane flexible handle for ratchets and wrenches An improved wrench for loosening and tightening objects having flexibility in two different planes of movement. The flexible drive wrench consists of an adjustable handle capable of rotating to achieve different angles along with a flexible shaft comprising of numer... | 03/18/2008 |
| 7340984 | Multi-functional hand tool A multi-functional hand tool comprises a hand tool body which has a handle; each of two ends of the handle having a connecting unit for connecting various assembly so that the hand tool has various functions. At least one connecting unit is formed with a recess. At ... | 03/11/2008 |
| 7328635 | Screwdriver handle A screwdriver handle includes a first handle part and a second handle part. A first pivotal coupling portion is formed on an end face of the first handle part and includes two receptacles each receiving a positioning member. The second handle part includes an end fa... | 02/12/2008 |
| 7328634 | Flex-head speed wrench A flex-head speed wrench has a head pivot axis transverse to an offset direction of the drive handle to enhance wrench stability. ... | 02/12/2008 |
| 7318366 | Locking flex-head ratchet wrench A ratcheting tool including a handle formed with an integral yoke at a first end and a tool head coupled to the yoke at a pivot. The tool head has a toothed hub facing rearwardly of the pivot and into the yoke. A locking spool is rotatably carried in the yoke adjace... | 01/15/2008 |
| 7311018 | Wrench A wrench includes a handle, a joint movably mounted on the handle and a working unit pivotally connected to the joint. The handle pivots relative to the working unit between a first position, where the handle and the working unit extend perpendicular to each other, ... | 12/25/2007 |
| 7302876 | Bi-sectional wrench A wrench includes a lever with teeth formed on the wall of a space defined therein. A handle includes teeth formed on the wall of a space defined therein. A toothed wheel is movable in the spaces between a first position where the teeth of the toothed wheel are enga... | 12/04/2007 |
| 7299718 | Multi-folding screwdriver A multi-folding screwdriver comprises a handle having a retainer formed therein; the retainer having a receiving space; a bottom end of the receiving space being installed with a first engaging portion; at least one via hole being formed in the retainer; a positioni... | 11/27/2007 |
| 7287450 | Tool device having rotatable driving shank A tool device includes a handle and a driving shank having one end engaged into the handle and rotatably attached and coupled to the handle with a pivot shaft for allowing the driving shank to be rotated relative to the handle from a straight position in line with t... | 10/30/2007 |
| 7278342 | Tool connecting device A tool connecting device includes a tool mount having a non-circular socket opening for receiving a non-circular spatial engaging member of a tool shank to allow the tool shank to be selectively tilted relative to the tool mount to different angular position. An anc... | 10/09/2007 |
| 7278338 | Control device for ratchet wrench A ratchet wrench includes a head having an engaging portion for mounting an object and a through hole which includes an engaging inner periphery and a smooth inner periphery, and is closed by a bottom plate with a central hole. A movable member is movably received i... | 10/09/2007 |
| 7264622 | System for radial bone displacement Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill is then passed through the hollow sleev... | 09/04/2007 |
| 7261022 | Insertion type hand tool An insertion type hand tool comprises a tool body having a handle and a connecting portion extended from the handle; the connecting portion having a combining groove; a driving portion having an engaging end corresponding to the connecting portion; at least one side... | 08/28/2007 |
| 7254855 | Multi-purpose hand tool and scribing apparatus utilizing multi-purpose hand tool A multi-purpose hand tool has a first member having a first portion and a second portion. A second portion member is slidably and pivotally coupled to the second portion of the first member. A coupling assembly pivotally couples the second member to the second porti... | 08/14/2007 |
| 7246543 | Multi-function adjustable wrench A multiple function adjustable wrench comprising: a shank 18 having a first end 16 with a fixed jaw 12, a adjustable jaw 10, and a adjusting screw 14. The adjusting screw 14 moves the adjustable jaw 10 toward and away... | 07/24/2007 |
| 7237462 | Hand tool with a handle made by different material A hand tool includes a handle made of a first material and at least one driving head connected to an end of the handle and the at least one driving head is made by a second material. A protection layer is coated onto the driving head and the handle. The first materi... | 07/03/2007 |
| 7237463 | Bendable wrench A bendable wrench includes a handle, a head and a pivot. The handle includes a first ear formed thereon, a second ear formed thereon and a plurality of teeth formed on an internal side of the second ear. The head includes an ear and a plurality of teeth formed on an... | 07/03/2007 |
| 7231718 | Multi-position locking tool A locking tool includes a handle and an elongated tool blade having a body and a tang. The tool blade has a tang spline opening formed therein which defines an annular array of alternate spline teeth and splined slots. A transversely-extending lock member has a spli... | 06/19/2007 |
| 7228767 | Tool connecting device A tool connecting device includes a shaft having a non-circular socket opening for receiving a non-circular rotatable member of a tool member to allow the tool member to be selectively tilted relative to the shaft to different angular position. A protrusion is exten... | 06/12/2007 |
| 7225544 | Ice axe for mountaineering with adjustable grip The ice axe for mountaineering includes a head, a shaft, and an anatomical grip having one free end and an end secured to the shaft. The grip defines a handling zone of the ice axe and includes an adjusting member for adjusting the length of the handling zone. The a... | 06/05/2007 |
| 7216569 | Screwdriver handle A screwdriver handle comprises a base portion; a pair of arms pivotally connected to the base portion; a locking sleeve mounted around the base portion and adapted to engage the pair of arms; a spring member mounted around the base portion and adapted to engage the ... | 05/15/2007 |
| 7207393 | Stepped drive shaft for a power tool A shaft comprises an input portion and a tang. The tang has a first section, a second section, and a radial bore. The second section is disposed between the first section and the input portion along an axis. A radial cross section of the first section is less than a... | 04/24/2007 |
| 7204176 | Wrench with two pivotable sections A wrench includes a handle with a first driving portion extending from one side of a first end of the handle and a pivotable section has one end thereof pivotably connected to a second end of the handle. A second driving portion extends from one side of the other en... | 04/17/2007 |
| 7204175 | Hand tool with replaceable and rotatable function head A hand tool includes a handle having a connection end which includes a receiving recess defined axially therein. A function head has an insertion which is removably inserted into the receiving recess and rotatable about a longitudinal axis of the connection end. A p... | 04/17/2007 |
| 7201085 | Pivoting device for hand tools A hand tool includes a head and a pin with toothed outer periphery securely extends through two plates extending from the head. A handle has an insertion which includes an elongate slot and a plurality of teeth are defined in a first inner end of the elongate slot. ... | 04/10/2007 |
| 7201086 | Wrench with articulating head An articulated wrench includes an elongate handle with a generally U-shaped depression at an end of the handle with an edge portion of the handle extending on either side of the depression, and a wrench head formed as a generally planar body with an aperture therein... | 04/10/2007 |
| 7197966 | Device for pivoting and positioning head of hand tool A hand tool includes a head which has an insertion and first teeth are defined in an outer periphery of the insertion. The insertion is pivotably connected to a recess between two lugs on a handle and a first biasing device is connected to an inner end of the recess... | 04/03/2007 |
| 7182000 | Adaptable hand tool A flexible adaptable hand tool to facilitate access in constricted areas. It includes a working tool element engaging the bolt or other device to be manipulated, and a varying set of extension bar elements adapted to be removably affixed to the working tool element ... | 02/27/2007 |