Patents by Inventor Mehdi Mojdeh
Mehdi Mojdeh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11975463Abstract: Embodiments relate to a pre-fabricated attachment for fabricating custom objects. In one embodiment, a system includes a mold and a pre-fabricated attachment. The mold includes a physical model of a dental arch of a patient and one or more first features. An orthodontic aligner is to be formed over the physical model. The pre-fabricated attachment includes one or more second features configured to removably attach to the one or more first features. The pre-fabricated attachment further includes a traceability component configured to be used to determine one or more identifiers corresponding to the mold. The pre-fabricated attachment further includes a handling component configured to be secured by a robot or person to transport the mold and pre-fabricated attachment during production of the orthodontic aligner. The pre-fabricated attachment may be reused.Type: GrantFiled: December 10, 2020Date of Patent: May 7, 2024Assignee: AlignTechnology, Inc.Inventors: Gabor Lukacs, Jack Shaw, Alexey Kalinichenko, Arthur George Butz, Mehdi Mojdeh, Enrique Soltero Borrego
-
Publication number: 20240090979Abstract: The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.Type: ApplicationFiled: December 1, 2023Publication date: March 21, 2024Applicant: ALIGN TECHNOLOGY, INC.Inventors: Sriram VENKATASANTHANAM, Ramin HEYDARPOUR, John Y. MORTON, Jun SATO, Michael Christopher COLE, Mehdi MOJDEH, Prashanth VANCHY, Natalia Lysaya POWERS, Sibel NARIN, Jeremy RILEY
-
Patent number: 11839520Abstract: The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.Type: GrantFiled: October 7, 2022Date of Patent: December 12, 2023Assignee: ALIGN TECHNOLOGY, INC.Inventors: Sriram Venkatasanthanam, Ramin Heydarpour, John Y. Morton, Jun Sato, Michael Christopher Cole, Mehdi Mojdeh, Prashanth Vanchy, Natalia Lysaya Powers, Sibel Narin, Jeremy Riley
-
Patent number: 11833753Abstract: A 3D printing system may include a tank in which a bottom of the tank is formed by a flexible membrane. The flexible membrane may be stretched within a frame, which together with the flexible membrane may form a membrane assembly that is secured to the tank sidewall by one or more hinged clamps. Each of the hinged clamps may comprise an arm and an angled member. The distal end of the arm may comprise a hooked attachment member that is complementary in shape to a lip of the frame of the membrane assembly. The proximal end of the arm may be attached to the angled member by a hinge. The angled member may be attached to the tank sidewall by another hinge. The angled member and the arm may be positioned to clamp the membrane assembly to the tank sidewall, or release the membrane assembly from the tank sidewall.Type: GrantFiled: April 12, 2022Date of Patent: December 5, 2023Assignee: Nexa3D Inc.Inventors: Miguel Cuevas Sandoval, Izhar Medalsy, Mehdi Mojdeh, Avi N. Reichental
-
Publication number: 20230364855Abstract: A method of 3D printing comprises extruding one or more photo-curable materials from a nozzle to form a first layer that has a first shape specified by the one or more digital files, wherein the first shape corresponds to a first minimum line width that is based on, and narrower than, a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the one or more digital files to cure a portion of the first layer to create a first cured layer, wherein the first cured layer corresponds to a second shape of a first layer of a 3D printed orthodontic aligner, wherein the light beam has a beam diameter that is smaller than the diameter of the nozzle, and wherein the second shape has a second minimum line width that is smaller than the first minimum line width.Type: ApplicationFiled: June 26, 2023Publication date: November 16, 2023Inventors: Mehdi Mojdeh, Michael Christopher Cole, Peter Dorfinger, Shiva P. Sambu
-
Publication number: 20230321909Abstract: A 3D printing system may include a tank in which a bottom of the tank is formed by a flexible membrane. The flexible membrane may be stretched within a frame, which together with the flexible membrane may form a membrane assembly that is secured to the tank sidewall by one or more hinged clamps. Each of the hinged clamps may comprise an arm and an angled member. The distal end of the arm may comprise a hooked attachment member that is complementary in shape to a lip of the frame of the membrane assembly. The proximal end of the arm may be attached to the angled member by a hinge. The angled member may be attached to the tank sidewall by another hinge. The angled member and the arm may be positioned to clamp the membrane assembly to the tank sidewall, or release the membrane assembly from the tank sidewall.Type: ApplicationFiled: April 12, 2022Publication date: October 12, 2023Inventors: Miguel Cuevas Sandoval, Izhar Medalsy, Mehdi Mojdeh, Avi N. Reichental
-
Patent number: 11718019Abstract: A 3D printer comprises a platform, a dispenser and a light source. A heating element heats a material and a nozzle extrudes the heated material onto the platform to form a first layer, having a first shape specified by one or more digital files. The first shape corresponds to a first minimum line width based on a diameter of the nozzle. The light source emits a light beam that is directed onto the first layer according to the one or more digital files to cure a portion of the first layer to create a first cured layer that corresponds to a second shape of a 3D object specified by the one or more digital files. The light beam has a beam diameter that is smaller than the diameter of the nozzle, and the second shape has a second minimum line width that is smaller than the first minimum line width.Type: GrantFiled: March 8, 2022Date of Patent: August 8, 2023Assignee: Align Technology, Inc.Inventors: Mehdi Mojdeh, Michael Christopher Cole, Peter Dorfinger, Shiva P. Sambu
-
Publication number: 20230062324Abstract: The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.Type: ApplicationFiled: October 7, 2022Publication date: March 2, 2023Applicant: ALIGN TECHNOLOGY, INC.Inventors: Sriram VENKATASANTHANAM, Ramin HEYDARPOUR, John Y. MORTON, Jun SATO, Michael Christopher COLE, Mehdi MOJDEH, Prashanth VANCHY, Natalia Lysaya POWERS, Sibel NARIN, Jeremy RILEY
-
Publication number: 20230023773Abstract: A three-dimensional (3D) object comprises a plurality of layers representative of an additive manufacturing process, wherein each layer of the plurality of layers approximately has a first thickness. A first layer of the plurality of layers forms at least a portion of a first surface of the 3D object, the first layer comprising a support region and an overcure region, wherein the first layer approximately has the first thickness at the support region and a greater second thickness at the overcure region. A support mark is included at the support region, wherein the support mark is inset from a first surface profile of the 3D object defined by the overcure region.Type: ApplicationFiled: October 3, 2022Publication date: January 26, 2023Inventors: Mehdi Mojdeh, Brett E. Kelly, Shiva P. Sambu
-
Publication number: 20220410438Abstract: A shell removal device includes a platform configured to secure a mold. An untrimmed shell is formed over the mold. The shell removal device further includes a drive mechanism configured to move the platform away from the untrimmed shell responsive to sensor data indicative that the untrimmed shell has begun to separate from the mold.Type: ApplicationFiled: August 19, 2022Publication date: December 29, 2022Inventors: Mehdi Mojdeh, Shiva P. Sambu, Dennis McNamara
-
Patent number: 11511485Abstract: A method of manufacturing a three-dimensional (3D) object may include fabricating a support structure and fabricating the 3D object on the support structure, wherein the support structure contacts the 3D object at a support region of the 3D object. The method further includes overcuring the 3D object at an overcure region of the 3D object, wherein the overcure region is distinct from the support region, and removing the support structure from the 3D object. After removal of the support structure, a support mark remains on the 3D printed object where the support structure had contacted the 3D object, wherein the overcure region of the 3D object projects past the support mark.Type: GrantFiled: April 1, 2020Date of Patent: November 29, 2022Assignee: Align Technology, Inc.Inventors: Mehdi Mojdeh, Brett E. Kelly, Shiva P. Sambu
-
Patent number: 11471253Abstract: The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.Type: GrantFiled: August 31, 2020Date of Patent: October 18, 2022Assignee: ALIGN TECHNOLOGY, INC.Inventors: Sriram Venkatasanthanam, Ramin Heydarpour, John Y. Morton, Jun Sato, Michael Christopher Cole, Mehdi Mojdeh, Prashanth Vanchy, Natalia Lysaya Powers, Sibel Narin, Jeremy Riley
-
Patent number: 11420362Abstract: Embodiments relate to automating removal of an untrimmed shell from a mold. In one embodiment, a shell removal device includes a body and a platform disposed within the body. The platform is configured to secure a mold that has an untrimmed shell formed over the mold. The shell removal device further includes a cover configured to secure the untrimmed shell to an upper surface of one or more sidewalls of the body and provide a seal between a lower surface of the untrimmed shell and the upper surface of the one or more sidewalls of the body. The shell removal device may include a media inlet in the body to permit pressurized media into the interior of the body to cause a pressure differential between an upper surface of the untrimmed shell and the lower surface of the untrimmed shell to cause the untrimmed shell to release from the mold.Type: GrantFiled: October 24, 2019Date of Patent: August 23, 2022Assignee: Align Technology, Inc.Inventors: Mehdi Mojdeh, Shiva P. Sambu, Dennis McNamara
-
Publication number: 20220193986Abstract: A 3D printer comprises a platform, a dispenser and a light source. A heating element heats a material and a nozzle extrudes the heated material onto the platform to form a first layer, having a first shape specified by one or more digital files. The first shape corresponds to a first minimum line width based on a diameter of the nozzle. The light source emits a light beam that is directed onto the first layer according to the one or more digital files to cure a portion of the first layer to create a first cured layer that corresponds to a second shape of a 3D object specified by the one or more digital files. The light beam has a beam diameter that is smaller than the diameter of the nozzle, and the second shape has a second minimum line width that is smaller than the first minimum line width.Type: ApplicationFiled: March 8, 2022Publication date: June 23, 2022Inventors: Mehdi Mojdeh, Michael Christopher Cole, Peter Dorfinger, Shiva P. Sambu
-
Publication number: 20220184883Abstract: A method of three-dimensional (3D) printing includes heating a photo-curable material and extruding the photo-curable material from a nozzle to form a first layer of an object according to a digital file, wherein the first layer has a first shape specified by the digital file, and wherein the first shape has a first minimum line width based on a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the digital file or an additional digital file to cure a portion of the first layer, wherein the cured portion of the first layer has a second shape, wherein the second shape may comprise features that are smaller than the first shape.Type: ApplicationFiled: March 8, 2022Publication date: June 16, 2022Inventors: Mehdi Mojdeh, Michael Christopher Cole, Peter Dorfinger, Shiva P. Sambu
-
Publication number: 20220152928Abstract: A vat polymerization printer may comprise a tank assembly for containing a photo-curing liquid resin. The tank assembly may include a tank sidewall and a tank bottom formed by a membrane assembly. The membrane assembly may comprise a radiation-transparent flexible membrane and a frame affixed to a perimeter of the radiation-transparent flexible membrane. In one embodiment, the radiation-transparent flexible membrane may include a radiation-transparent flexible substrate sandwiched between two fluorinated ethylene propylene (FEP) films or two polyolefin polymer films. In another embodiment, the radiation-transparent flexible membrane may include an FEP or polyolefin polymer film bonded to a layer of silicone rubber at a first side of the layer of silicone rubber, the layer of silicone rubber having a coating on a second side thereof. The vat polymerization printer may also comprise an OLED light source.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Inventors: Jeng-dung Jou, Mehdi Mojdeh, Izhar Medalsy
-
Patent number: 11318667Abstract: A method of three-dimensional (3D) printing includes heating a photo-curable material and extruding the photo-curable material from a nozzle to form a first layer of an object according to a digital file, wherein the first layer has a first shape specified by the digital file, and wherein the first shape has a first minimum line width based on a diameter of the nozzle. The method further includes directing a light beam onto the first layer according to the digital file or an additional digital file to cure a portion of the first layer, wherein the cured portion of the first layer has a second shape, wherein the second shape may comprise features that are smaller than the first shape.Type: GrantFiled: September 13, 2019Date of Patent: May 3, 2022Assignee: Align Technology, Inc.Inventors: Mehdi Mojdeh, Michael Christopher Cole, Peter Dorfinger, Shiva P. Sambu
-
Publication number: 20220126514Abstract: A vat polymerization printer may comprise a tank assembly for containing a photo-curing liquid resin. The tank assembly may include a tank sidewall and a tank bottom formed by a membrane assembly. The membrane assembly may comprise a radiation-transparent flexible membrane and a frame affixed to a perimeter of the radiation-transparent flexible membrane. The radiation-transparent flexible membrane may include a radiation-transparent flexible substrate sandwiched between two fluorinated ethylene propylene (FEP) films or two polyolefin polymer films. More specifically, a first side of the radiation-transparent flexible substrate may be bonded to a first FEP or polyolefin polymer film, and a second side of the radiation-transparent flexible substrate may be bonded to a second FEP or polyolefin polymer film. In one embodiment, the radiation-transparent flexible substrate may be a layer of silicone rubber.Type: ApplicationFiled: January 10, 2022Publication date: April 28, 2022Inventors: Jeng-dung Jou, Mehdi Mojdeh
-
Patent number: 11109946Abstract: The present disclosure relates to ornamental indicia carrier and method of producing the same. In some embodiments, the ornamental indicia carrier comprises an ultraviolet light (“UV”) cured ink printed on a thin flexible film and combined with an adhesive layer. The ornamental indicia carrier is capable of enduring the conditions inside the mouth for an extended period of time and can be used in conjunction with a dental appliance.Type: GrantFiled: September 28, 2020Date of Patent: September 7, 2021Assignee: ALIGN TECHNOLOGY, INC.Inventors: Sriram Venkatasanthanam, Ramin Heydarpour, John Y. Morton, Jun Sato, Michael Christopher Cole, Mehdi Mojdeh, Prashanth Vanchy, Natalia Lysaya Powers, Sibel Narin, Jeremy Riley
-
Publication number: 20210178639Abstract: Embodiments relate to a pre-fabricated attachment for fabricating custom objects. In one embodiment, a system includes a mold and a pre-fabricated attachment. The mold includes a physical model of a dental arch of a patient and one or more first features. An orthodontic aligner is to be formed over the physical model. The pre-fabricated attachment includes one or more second features configured to removably attach to the one or more first features. The pre-fabricated attachment further includes a traceability component configured to be used to determine one or more identifiers corresponding to the mold. The pre-fabricated attachment further includes a handling component configured to be secured by a robot or person to transport the mold and pre-fabricated attachment during production of the orthodontic aligner. The pre-fabricated attachment may be reused.Type: ApplicationFiled: December 10, 2020Publication date: June 17, 2021Inventors: Gabor Lukacs, Jack Shaw, Alexey Kalinichenko, Arthur George Butz, Mehdi Mojdeh, Enrique Soltero Borrego