...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.
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| Number | Title | Issue Date |
| 8166981 | Hair styling tool A hairstyling tool has a bowl having a plurality of bowl convex portions and bowl concave portions. The bowl concave portions form air channels. A plurality of openings is disposed on a bottom of the bowl. There are more than twenty openings. A handle is connected t... | 05/01/2012 |
| 8100136 | Hair curling kit The hair curling kit of the present invention preferably comprises a first parting device, a second parting device, and respective first, second, and third types of conventional hair rollers to facilitate the curling of hair for a myriad of hairstyles. The parting d... | 01/24/2012 |
| 7958897 | Ultrasonic hair treatment device In an ultrasonic hair treatment device comprising a vibrator having a vibration element for generating ultrasonic vibrations and a receiver facing the vibrator as to apply the ultrasonic vibrations to a bundle of hairs which is pinched between the vibrator and the r... | 06/14/2011 |
| 7198049 | Implement for treating hair and method of treating hair using the same An implement for treating strands of hair comprising a reservoir containing a composition and guide means capable of sliding in the reservoir. The guide means comprises a body extending through the reservoir, pulling means (e.g. a pull strip) protruding from one end... | 04/03/2007 |
| 7178532 | Flat iron with pivoting heads A flat iron for styling hair has head portions with heatable inner surfaces that may be pivotally positioned and locked relative to the handle portions to provide enhanced ergonomic comfort and control. ... | 02/20/2007 |
| 6666215 | Device and method for selectively applying hair treatment The invention comprises a foil piece for use in treating hair, comprising a ridge pattern which enhances application of the treating agent to the hair. In the preferred embodiment, the ridge pattern will be essentially horizontal when in use. The ridge pa... | 12/23/2003 |
| 6647989 | Hair treatment device and method A device for use in hair treatment comprises a tube (10) having a wall constructed of elements (11, 12) extending in a direction inclined to the length of the tube, or a wall constructed of interwoven fibres (11, 12). As a result of its construction when ... | 11/18/2003 |
| 6520188 | Method and kit for personalizing a hair styling tool A method for retrofitting tools such as curling irons with identifying indicia, and a device and kit for implementing the method. The device consists of a cap that carries identifying indicia in the form of a selected color or combination of colors, lette... | 02/18/2003 |
| 6196236 | Ultrasonic hair curling device An ultrasonic hair curling device capable of applying ultrasonic vibration efficiently to hairs for effective hair styling in a short time. The device includes a housing, an ultrasonic generator incorporated in the housing for generating ultrasonic vibrat... | 03/06/2001 |
| 6012466 | Hair curler Presented are three embodiments of a hair curler including in one embodiment an apertured tubular member having an apertured felt-like layer secured to the tubular member. A flexible anchor pad having flexible hook-like protrusions is adhered to the felt-... | 01/11/2000 |
| 5979464 | Hair roller A hair roller is provided around which hair can be wound easily with tension toward the outside acting on the hair, without a fear that the distal ends of the hair are folded, with ease in handling, and with good operativity, and with which the wound stat... | 11/09/1999 |
| 5944029 | Hair curling device A hair curling device which has an elongated flexible member in the form of a strip which has a self coiling capability from an at-rest storage configuration, and when initially moved from a longitudinally straight configuration will automatically form a ... | 08/31/1999 |
| 5894848 | Hair styling device Hair styling accessories including a puffing member specially adapted for shaping hair into a puffed condition. Also included is a specially shaped barrette which is adapted for cooperative combination with the puffing member to position and retain the pu... | 04/20/1999 |
| 5890496 | Heatable hair curler with adjustable diameter An adjustable hair curler includes a thin sheet of a flexible resilient material. A coating on a first side of the resilient sheet includes a soft material for contacting and gripping the hair. A coating is also applied to the second opposite side of the ... | 04/06/1999 |
| 5813419 | Hair curler Hair-shaping Device, so-called hair curler, made with a sheet (3), preferably a semi-rigid material, provided with perforations (7), which has been folded a first time lengthwise forming a central fold (9) and then folded in zigzag (13) perpendicularly to... | 09/29/1998 |
| 5662128 | Adjustable hair curler and method of use The present invention is directed to a novel adjustable diameter hair curler which is extremely lightweight, portable, and suitable for travel. The novel adjustable curler includes a sheet of a flexible material such as a plastic or fabric or backing mate... | 09/02/1997 |
| 5660192 | Hair curler The invention relates to a curler having a roller made of a plastic or latex material and a self-gripping tape which is seated thereon, the self-gripping tape covering a central portion of a circumferential surface of the roller designed as a soft roll an... | 08/26/1997 |
| 5628333 | Hair curler The hair curler includes an outer and an inner sleeve. Both sleeves include passages in their walls. The sleeves can be rotated relative to each other. Accordingly, the passages in the outer sleeve can be opened or shut off. The hair curler includes a hol... | 05/13/1997 |
| 5598858 | Eyelash curler An eyelash curler comprising a stationary member and a movable member. The stationary member includes a piece of material shaped into a thumb loop at the bottom and a pair of spaced-apart posts at the top. The tops of the posts extend upwardly sufficientl... | 02/04/1997 |
| 5383480 | Hair waving device and method A device and method is provided for molding parallel waves extending outwardly from the person's scalp. The device includes a band attached tightly around the person's head with a plurality of flexible members attached and extending from one side of the p... | 01/24/1995 |
| 5362487 | Cysteamine permanent wave composition and method A single formula, mild permanent wave reducing composition and method of permanently waving or reshaping human hair that provides a strong, long lasting curl and leaves the hair soft while minimizing further damage to already damaged hair. The composition... | 11/08/1994 |
| 5294777 | Hair clip for heating and shaping root-area hair perpendicular to the scalp and an electric heating unit for heating the clips A hair clip for heating and styling clasped hair, whether damp or dry, into a linear configuration in the scalp area of a user. The clip comprises a pair of biasable jaws including a pair of plates for storing heat and releasing such heat to style clasped... | 03/15/1994 |
| 5228465 | Hair clamp A hair clamp has an outer shell comprised of a thin substantially rigid plastic material The shell includes a front portion and a rear portion each of which is separately hinged to a spine portion. The inner surface of the shell is covered with a layer of... | 07/20/1993 |
| 5119846 | Hair wave rollers An apparatus for waving the hair comprises a pair of snap-together complementary pieces made of resilient plastic. The pieces when fitted together define a sinuous or swirled path between them. When the pieces are snapped together over a strand of hair, t... | 06/09/1992 |
| 5025850 | Hair crimping device A hair crimping device for use in setting human hair includes a pair of complementary formed triangular wave form members dimensioned for nesting engagement. A base plate is secured to a first tiangular wave form member and includes an elongated projectin... | 06/25/1991 |
| 4974447 | Method and apparatus for the shaping treatment of hair wound onto rollers, including human hair Method and apparatus are disclosed for the optimal hair shaping treatment of hair coiled onto rollers, e.g. human hair, whereby the deformations of a roller body resulting during a hair shaping treatment are detected and introduced as deformation measurem... | 12/04/1990 |
| 4753251 | Permanent wave hair-curler The hair-curler is comprised of two parts capable of being assembled, a first part having a socket (20) and a plurality of rectilinear or curved cylindrical pins (21, 22, 23) and having a pointed end and a second part comprising a socket (30) provided wit... | 06/28/1988 |
| 4660581 | Method of forming permanent waves on hair A bundle of hair is clamped between a pair of corrugated curling members having alternate ridges and grooves at a predetermined pitch with a predetermined curvature, and then coated with a permanent waving solution to thereby form successive permanent wav... | 04/28/1987 |
| 4475563 | Hair brush with movable bristle rows A hair brush has features for placing waves in the hair with the use of a hot air blower. The brush has a body with a filament carrier portion and a handle portion. The filament carrier portion has at least one stationary section and one movable section. ... | 10/09/1984 |
| 4307737 | Hair braider Cylindrical open-top container houses generally annular slide track having diametric unidirectional stretch, the tracks being bordered by laterally extending guide rails which engage restricted necks of a row of individual holders which are each slidable ... | 12/29/1981 |
| 4215709 | Hair shaping and lifting system A hair shaping and lifting system is disclosed wherein a flexible hair supporting cap is receivable over the head of an individual whose hair is to be styled. The hair supporting cap has an outer deformable surface and a plurality of slots therein. The in... | 08/05/1980 |
| 4214597 | Hair waving method and device A hair waving device and method wherein a connector part is provided with a pair of spaced walls extending generally longitudinally of each other from the connector part, the walls having smoothly convex transversely arcuate surfaces of at least 90° arc,... | 07/29/1980 |
| 4022225 | Coil curler In a preferred embodiment, an elongated tape rigid in a width direction and flexible in a length direction, having an elongated coil spring embodied therein extending its length, with adjustable clamps at one end thereof for anchoring around hair to be cu... | 05/10/1977 |
| 4008726 | Tri-comb waver A new type of comb for easily placing a wave of any desire of degree into the hair; the device in one form of the invention consisting of three flat comb members located parallel and spaced apart from each other, each of the combs having a row of teeth al... | 02/22/1977 |