Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
PatentStorm News
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 |
| 8020595 | Pneumatic tire with tread having sipes and shallow grooves A plurality of shallow grooves which are shallower than a sipe are formed on land sections formed on treads of a pneumatic tire. The shallow grooves are configured so that a total sectional area of the shallow grooves per unit area in a cross section in a tire width... | 09/20/2011 |
| 7926529 | Tire for heavy equipment and tire tread A tire for heavy equipment of the heavy-vehicle, agricultural or construction machinery type, includes a carcass reinforcement surmounted radially by a crown reinforcement, itself covered radially by a tread, the tread being connected to two beads by two sidewalls. ... | 04/19/2011 |
| 7398808 | Micro-cellular closed-cell sponge rubber outers The invention relates to a method of making an outer tire layer on a pneumatic tire microcellular closed-cell sponge rubber, method of making the aforesaid product. ... | 07/15/2008 |
| 7377300 | Elastic tire for measuring the grip of a vehicle equipped therewith on a ground An elastic tire according to the invention comprises a tread (1) which comprises at least one unit (3) for measuring the grip of the tire on the ground, the measuring unit (3) being intended to come into contact with the ground on each revolutio... | 05/27/2008 |
| 7306019 | Pneumatic tire including toriodally continuous cells and method of producing same A rubber composition is provided with a large friction force even on a body having, for example, an ice face of a low friction coefficient. The composition is constituted by a foamed rubber having a rationalized foaming state. The composition is applied to an upper-... | 12/11/2007 |
| 7249621 | Rubber composition and tire with component of diene-based elastomer composition with corncob granule dispersion This invention relates to a rubber composition and tire having at least one component of a rubber composition comprised of at least one diene-based elastomer, to the exclusion of butyl type elastomers, which contains an internal dispersion of corncob granules. Such ... | 07/31/2007 |
| 7195799 | Polymer composition for traction on ice The present invention provides a composition comprising a polymer and methods of using the composition to increase the traction of an article of manufacture on an icy surface. The polymer can be a silicate polymer, a plancheite-derived polymer, a pinacol polymer, an... | 03/27/2007 |
| 7053137 | Azodicarbonamide treatment for carbon black and rubber compounds A process for producing cured rubber is disclosed wherein the process comprises: A) mixing rubber, carbon black, and azodicarbonamide without other curative ingredients; B) adding the remaining curative ingredients... | 05/30/2006 |
| 7021350 | Pneumatic run-flat tire with porous elastomeric layer Disclosed is a pneumatic run-flat tire. The tire has at least one carcass reinforcing ply, at least one pair of sidewall wedge inserts, and a belt reinforcing structure. The belt reinforcing structure is formed from at least a pair of cross cord belt reinforcing pli... | 04/04/2006 |
| 6952990 | Land mine overpass tread design A land mine pressure fuse avoidance system has a base. A tread on the base contacts the ground around a land mine and independently distributes pressures around the ground. The tread has plural independent closed cell foam rubber elements. Each element is separated ... | 10/11/2005 |
| 6719024 | Pneumatic tire having sipes In a pneumatic tire including sipes extending in zigzag provided on tread surfaces, both wall surfaces of each sipe, which face to each other, are inclined with respect to a diameter direction of the tire, constituted of triangular wall surfaces, each having two sid... | 04/13/2004 |
| 6497261 | Pneumatic tire having tread made of foamed rubber composition This invention relates to a pneumatic tire comprising a tread at least a surface portion of which is made of a foamed rubber composition, the foamed rubber composition including closed cells formed by compounding a foaming agent and a foaming assistant wh... | 12/24/2002 |
| 6450222 | Non-pneumatic tire having an elastomeric hoop A non-pneumatic tire having an elastomeric portion encompassing the tread and a radially inward foam portion. In the elastomeric portion, certain physical characteristics of the elastomeric portion differ between the tread surface and the radially inward ... | 09/17/2002 |
| 6427738 | Tire and vulcanized rubber including elongated cells A vulcanized rubber comprising a rubber component containing natural rubber, in an amount of 20 to 70 parts by weight, and polybutadiene, in an amount of 30 to 80 parts by weight; a rubber matrix containing 5 to 55 parts by weight of carbon black and 5 to... | 08/06/2002 |
| 6336487 | Pneumatic tire, method of manufacturing a pneumatic tire, rubber composition and vulcanized rubber composition A pneumatic tire which is used for a vehicle and obtained after a rubber material is formed by vulcanization. A cap portion (12A), which is an upper layer of a tread and directly contacts the road surface, is a foam rubber which includes innumerable elong... | 01/08/2002 |
| 6216757 | Low noise level tire A low noise level tire includes a carcass composed of at least one ply toroidally extending between a pair of bead cores, and a tread arranged radially outwardly of the carcass and composed of an outer cap rubber layer and an inner base rubber layer. The ... | 04/17/2001 |
| 6075098 | Pneumatic tire comprising a foamed rubber layer containing a vulcanization accelerator and comprising a closed cell and solid rubber phase A pneumatic tire comprising a tire tread wherein a foamed rubber layer is provided at least in the portion substantially contacting with a road surface, and wherein said foamed rubber layer, which has closed cells, has an expansion ratio of about 2% to ab... | 06/13/2000 |
| 6021831 | Pneumatic tire having foamed rubber A pneumatic tire in which a foamed rubber layer having closed cells is provided at a surface of a tire tread which substantially contacts at least a road surface, wherein the foamed rubber layer has closed cells whose average diameter is about 1 μm to ab... | 02/08/2000 |
| 5975173 | Pneumatic tire using fiber composite material A fiber composite material in which short fibers, such as polyester short fibers, are added to a matrix, such as a cross-linked rubber matrix, is provided, wherein a heat shrinkage ratio of the short fibers is 8% or less at fiber composite material moldin... | 11/02/1999 |
| 5950700 | Pneumatic tire and vulcanization mold therefor A pneumatic tire comprises sipes in each land portion defined by wide-width grooves in a tread portion, in which a sipe corresponding to at least a part of these sipes comprises a pair of main portions slightly shifting to each other in the axial directio... | 09/14/1999 |
| 5571350 | Pneumatic tire with tread of matrix foamed rubber containing resin A pneumatic tire for all seasons comprises a tread provided with a foamed rubber containing a given amount of a particular resin such as crystalline syndiotactic 1,2 -polybutadiene having specified hardness and average particle size, and having specified ... | 11/05/1996 |
| 5499888 | Bidirectional roadway for wheeled vehicles A roadway for bicycle and other tired wheel vehicles formed of a plurality of end-to-end abutting tiles, preferably of a structural foam plastic such as polyethylene includes a generally rigid base having opposed top and bottom surfaces, with the top surf... | 03/19/1996 |
| 5429164 | Cap-and-base type pneumatic tires A pneumatic tire including a tread portion provided with a foamed rubber layer made of a foamed rubber and an outer rubber layer made of a non-foamed rubber and arranged radially outwardly of the foamed rubber layer to contact roads. The radially thicknes... | 07/04/1995 |
| 5417267 | Pneumatic tires including foamed rubber layer to reduce noise A pneumatic tire comprises a carcass of at least one carcass ply, a belt comprised of at least three belt layers, and a tread provided with plural circumferential grooves and island portions defined by these circumferential grooves, in which the tread is ... | 05/23/1995 |
| 5351734 | Pneumatic tire with foam rubber in the tread Herein disclosed is a pneumatic tire which comprises a case and a tread which covers a crown portion of the case. The tread includes a foamed rubber which has a volume not less than 10% of that of the entire of the tread, and the foamed rubber is formed o... | 10/04/1994 |
| 5181976 | Pneumatic tire having expanded outer tread rubber layer A pneumatic tire having excellent tire performances in winter and summer seasons comprises a tread, a part of which is comprised of an expanded rubber in a volume corresponding to at least 10% of the total volume of the tread at its surface. This expanded... | 01/26/1993 |
| 5176765 | Pneumatic tire having outer tread layer of foam rubber To prevent crack occurrence at groove bottoms on both side areas of foam rubber tread of all-season studless tires, the pneumatic tire having a tread surface portion composed of at least two outer and inner rubber layers is characterized in that the hardn... | 01/05/1993 |
| 5147477 | Pneumatic tire having foamed tread rubber Herein disclosed is a pneumatic tire which comprises a case and a tread which covers a crown portion of the case. The tread includes a foamed rubber which has a volume not less than 10% of that of the entire of the tread, and the foamed rubber is formed o... | 09/15/1992 |
| 5109902 | Pneumatic tires including a foamed tread base rubber A pneumatic tire comprising a toroidal carcass, a belt composed of at least two rubberized cord layers arranged radially outside the carcass, and a tread surrounding the periphery of the belt. The tread rubber comprises a base rubber made of a foamed rubb... | 05/05/1992 |
| 4249588 | Pneumatic tire A pneumatic rubber tire having, as its exposed tread, an integral, resilient, covulcanized, closed cell rubber structure.... | 02/10/1981 |
