Did You Know...
...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 |
| 7370419 | Replacement cartridge for a razor assembly A replacement cartridge for a razor assembly is provided that includes a shaving aid body for use with the razor assembly. The shaving aid body includes an aperture disposed within a contact surface. The aperture is sized to receive a razor cartridge. Some embodimen... | 05/13/2008 |
| 7284461 | Colored razor blades Colored razor blades are provided. Methods for manufacturing such blades are also provided, including methods involving subjecting a blade material to a hardening process; and, during the hardening process, oxidizing the blade material to form an oxide layer on the ... | 10/23/2007 |
| 7266895 | Razor assembly A razor assembly is provided that includes a razor cartridge with one or more razor blades, a shaving aid body, a handle, and a linkage pivotally connected to the handle. The linkage is connected to the razor cartridge and the shaving aid body in a manner such that ... | 09/11/2007 |
| 7251894 | Device for shaving hair having a cutting member with a periodical motion The invention relates to a device (1) for shaving hair (93) and to a device having a shaving head (9). The shaving head (9) has at least one cutting member (17, 19) having a cutting edge (23) and a cutting direction (X), and... | 08/07/2007 |
| 7197825 | Razors and shaving cartridges with guard A shaving blade unit includes a plastic housing having a front portion and a rear portion and two side surfaces extending from the front portion to the rear portion. The housing has a length extending from one side surface to the other side surface. Positioned betwe... | 04/03/2007 |
| 7178241 | Lubricating shaving assembly A shaving assembly includes a grippable body having an upper end, a lower end, and one or more side walls extending therebetween. The body includes a storage reservoir for holding a fluid shaving preparation. The storage reservoir is enclosed by the upper and lower ... | 02/20/2007 |
| 7178243 | Oval frame razor A razor blade unit for safety razor has optimized shape and dimensions for body shaving, especially the regions of the axillae. The blade unit has an elongate blade with a rectilinear sharpened edge, and a skin contacting surface at which the length is 1 to 4 times ... | 02/20/2007 |
| 7162800 | Wet shaving assembly A shaving assembly for simultaneously applying a shaving preparation and removing hair in a single step includes a base having an upper end, a lower end and a hollow space between the upper and lower ends, whereby the hollow space defines an opening at the upper end... | 01/16/2007 |
| 7140115 | Shaving apparatus with wheel Provided are shavers that are particularly applicable to shaving a user's head, but that may be utilized for shaving any part of the body. More specifically, a shaver according to the present invention has one or more of the following elements: a wheel or other roll... | 11/28/2006 |
| 7127817 | Shaving preparation for wet shaving assembly A shaving assembly for simultaneously applying a shaving preparation and removing hair in a single step includes a base having an upper end, a lower end and a hollow space between the upper and lower ends, whereby the hollow space defines an opening at the upper end... | 10/31/2006 |
| 7111401 | Razor head having skin controlling means A detachable razor cartridge has blade seat and at least one blade having a rectilinear cutting edge. An in-line row of integral guard elements project in cantilever position from the blade seat and extend in spaced relation to and beyond the cutting edge of the bla... | 09/26/2006 |
| 7103976 | Razor assembly A razor assembly is provided that includes a razor cartridge with one or more razor blades, a shaving aid body, a handle, and a linkage pivotally connected to the handle. The linkage is connected to the razor cartridge and the shaving aid body in a manner such that ... | 09/12/2006 |
| 7086159 | Razor assembly A razor assembly is provided that includes a handle having a cavity, a razor cartridge attached to a razor cartridge holder, and a shaving aid body. The razor cartridge holder is slidably received within the cavity of the handle. The shaving aid body is attached to ... | 08/08/2006 |
| 7043840 | Shaving razor and blade unit with improved guard A shaving razor blade unit that has a plurality of blades and a guard that includes two groups of rows of elongated, elastomeric fins arranged generally parallel to the cutting edges of the blades. The first group of fins has tips with generally uniform base to tip ... | 05/16/2006 |
| 6996908 | Wet shaving assembly A shaving assembly operable in dry shaving environments and wet shaving environments is provided that includes a razor assembly and a shaving preparation cake. The razor assembly, which includes a razor cartridge attached to a handle, is operable in dry shaving envi... | 02/14/2006 |
| 6941659 | Safety razors A guard of a safety razor blade unit has a lubricating strip (24) disposed in front of a backstop (23), and the edge of the backstop which contacts the skin during shaving is castellated to define channels (30) separated by lands (31). Th... | 09/13/2005 |
| 6889438 | Oval frame razor A safety shaving assembly for attachment to a razor handle has optimised shape and dimensions for body shaving, especially the regions of the underarm. The shaving assembly has an elongate blade with a linear sharpened edge, and a skin contacting surface whose lengt... | 05/10/2005 |
| 6792682 | Razor cartridge with shaving aid A razor cartridge is provided that includes a seat, a cap, one or more razor blades, and a relief centrally located in an aft face of the cap. The relief enables the user to get the cutting edges of the one or more razor blades in closer proximity to a feature (e.g.... | 09/21/2004 |
| 6675479 | Shaving razor and blade unit with improved guard A shaving razor blade unit that has a plurality of blades and a guard that includes two groups of rows of elongated, elastomeric fins arranged generally parallel to the cutting edges of the blades. The first group of fins has tips with generally uniform b... | 01/13/2004 |
| 6655029 | Safety razor A safety razor with a plurality of blade members which are covered by a guard plate. The guard plate is provided with a plurality of blade tip guards which are arranged along the blade tip edges of the blade members, and the blade tip edge of at least one... | 12/02/2003 |
| 6651342 | Shaving razor and blade unit with improved guard A shaving razor blade unit that has a plurality of blades and a guard that includes two groups of rows of elongated, elastomeric fins arranged generally parallel to the cutting edges of the blades. The first group of fins has tips with increasing elevatio... | 11/25/2003 |
| 6601303 | Safety razors A safety razor blade unit has a guard structure (5) which includes a strip (10) of elastomeric material e.g. with projections such as fins (12) or tubes (35), and a backstop (13) disposed between the elastomeric strip (10) and the edge (20) of a leading b... | 08/05/2003 |
| 6568084 | Razor blade cartridge with guard ribs A razor blade cartridge is disclosed for wet shaving. The razor blade cartridge includes a platform member having a blade seat and a guard member. A plurality of first guard ribs are disposed on the platform member, and a first blade is disposed on the bl... | 05/27/2003 |
| 6550141 | Razor heads with intermediate guard elements Razor heads comprising at least one blade and a plurality of guard elements over the leading edge at a plurality of intermediate portions. According to preferred embodiments, the guard elements are integrally molded with at least one or more of a blade su... | 04/22/2003 |
| 6539633 | Razor with sound indicator signalling first use The invention relates to a razor (1) whose head (2) is provided with a protective member (4) in which it engages in removable manner for the purpose of protecting the cutting blade(s) (3) before use and possibly also after use, the razor (1) having at lea... | 04/01/2003 |
| 6473970 | Razor blade cartridge with lubricating flow paths A blade cartridge including one or more blades fixed between a platform member and a cap member. The blades have apertures that allow lubricants removed from a surface of a shaver by the cutting edge of the blade to be transported through the blade and su... | 11/05/2002 |
| 6397473 | Shaving system with uniform shaving forces Shaving systems are designed to provide greater uniformity to shaving forces over the skin-engaging portion of the skin-engaging element, such as a blade, guard element or cap member. According to one embodiment, at least one, and preferably a plurality o... | 06/04/2002 |
| 6378211 | Razor blade cartridge with guard ribs A blade cartridge including one or more blades fixed between a platform member and a cap member. The present invention provides a novel blade cartridge including one or more protruding members, or guard ribs, positioned proximate the skin engaging edges o... | 04/30/2002 |
| 6263576 | Angled hand-held razor My improved hand-held razor ensures smoother hair removal on any human body part and even on furry domestic animals. The angled or precut blade or blades in the razor head result in angled orientations instead of straight across the longitudinal length of... | 07/24/2001 |
| 6243951 | Safety razors A safety razor blade unit having a plurality of blades presenting substantially parallel blade edges. The blades are disposed between a guard and a cap. The blades are independently movable and are carried by supports. At least one of the supports has spa... | 06/12/2001 |
| 6212777 | Safety razors A safety razor blade unit including a guard, a cap, and a group of three blades with parallel sharpened edges located between the guard and cap, the first blade defining a blade edge nearest the guard having a negative exposure not less than -0.2 mm, and ... | 04/10/2001 |
| 6185823 | Oval frame razor A razor blade unit for a safety razor has optimised shape and dimensions for body shaving, especially the regions of the axillae. The blade unit has an elongate blade with a rectilinear sharpened edge, and a skin contacting surface at which the length is ... | 02/13/2001 |
| 6167625 | Shaving implement A shaving implement, such as a disposable cartridge or razor, comprises a shaving head which includes a skin-contacting element in the form of a series of cavities and projections. The projections are arranged in the cavities in order to provide a unique ... | 01/02/2001 |
| 5953819 | Razors A skin contacting member for a razor or like shaving device. In use, the skin contacting member is located ahead of a blade or blades of the razor. The skin contacting member has channels formed by stiff wall segments that extend perpendicular to the blad... | 09/21/1999 |
| 5903979 | Safety razors A safety razor blade unit (FIG. 1) comprises at least one elongate blade (1, 2) and a skin-engaging member (3) extending longitudinally of the blade or blades (1, 2) and defining a surface (9) exposed for contact with the skin during shaving. A plurality ... | 05/18/1999 |
| 5794343 | Razor blade assembly A razor blade assembly includes an elongate platform supporting a pair of blades and an elongate guard member disposed adjacent a forward edge of the platform. The guard member has a plurality of fins each spaced one from the other. In preferred embodimen... | 08/18/1998 |
| 5761814 | Razor construction A razor blade assembly has a body member containing blade means which may be resiliently mounted and biased outwardly from the body member. A wrap-around clip is provided at both sides of the body member, the clip having its ends terminating at the bottom... | 06/09/1998 |
| 5630275 | Multi-blade razor head with improved performance The various embodiments of the present invention are directed to razor heads having a plurality of cutting edges wherein the physical characteristics of the cutting edges are different from each other. Among the items which may be varied in the blades are... | 05/20/1997 |
| 5560105 | Replaceable blade cartridge for razor A blade has an edge exposed between a blade rest and a cap. A guard element extending perpendicularly to a longitudinal direction with respect to the blade contacts with a plurality of points on the edge to define a space between the user's skin and the e... | 10/01/1996 |
| 5456009 | Multi-blade razor head with improved performance Shaving systems having a plurality of cutting edges. At least one fencing element is disposed proximate one cutting edge to prevent a plurality of discrete portions of that first cutting edge from contacting the skin surface being shaved. The other cuttin... | 10/10/1995 |
