Patents by Inventor John R. Ehteshami
John R. Ehteshami 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).
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Patent number: 11918480Abstract: The present invention relates to an implantable cervical cage having a flexible posterior plate allowing for posterior displacement or movement of the cage.Type: GrantFiled: July 21, 2022Date of Patent: March 5, 2024Assignee: Additive Implants, Inc.Inventors: John R. Ehteshami, Mahyar Zoghi
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Patent number: 11903618Abstract: The present invention relates to an implantable anterior cervical plate having a stackable superior design, which deflects soft tissue.Type: GrantFiled: August 12, 2021Date of Patent: February 20, 2024Assignee: Additive Implants, Inc.Inventors: John R. Ehteshami, Mahyar Zoghi
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Patent number: 11684482Abstract: An intervertebral implant for spondylolisthesis correction includes a superior side with serrations angled superiorly and toward the implant insertion direction, an inferior side with serrations angled inferiorly and opposite the implant insertion direction, and an instrument connection feature. An instrument for connection to the implant includes an implant connection feature movable between unlocked and locked states, and a friction-reducing feature movable between disengaged and engaged states. The instrument has a first state, in which the implant connection feature is in the unlocked state and the friction-reducing feature is in the disengaged state; a second state, in which the implant connection feature is in the locked state and the friction-reducing feature is in the engaged state; and a third state, in which the implant connection feature is in the locked state and the friction-reducing feature is in the disengaged state. Methods of apparatus assembly and surgery are disclosed.Type: GrantFiled: December 17, 2019Date of Patent: June 27, 2023Assignee: Additive Implants, Inc.Inventor: John R. Ehteshami
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Publication number: 20230050762Abstract: The present invention relates to an implantable anterior cervical plate having a stackable superior design, which deflects soft tissue.Type: ApplicationFiled: August 12, 2021Publication date: February 16, 2023Inventors: John R. Ehteshami, Mahyar Zoghi
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Publication number: 20230024730Abstract: The present invention relates to an implantable cervical cage having a flexible posterior plate allowing for posterior displacement or movement of the cage.Type: ApplicationFiled: July 21, 2022Publication date: January 26, 2023Applicant: Additive Implants, Inc.Inventors: John R. Ehteshami, Mahyar Zoghi
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Publication number: 20220331123Abstract: Intervertebral implant systems include spacers that may have solid and porous bodies integrally formed together as a single part. The bone-facing sides of the spacers include asymmetric lobes which may include solid and/or porous portions. Bone anchor holes may extend through the spacers and lobes, to receive bone anchors. A helically fluted bone anchor may be received in the bone anchor holes.Type: ApplicationFiled: September 24, 2020Publication date: October 20, 2022Applicant: ADDITIVE IMPLANTS, INC.Inventors: John R. EHTESHAMI, Mahyar ZOGHI
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Patent number: 11406509Abstract: The present invention relates to an implantable cervical cage having a flexible posterior plate allowing for posterior displacement or movement of the cage. The cervical cage includes an anterior wall or side with a rigidity greater than a rigidity of the posterior plate. The differential between the anterior and posterior rigidity allow the cervical cage to flex more in a posterior plane than an anterior plane.Type: GrantFiled: June 4, 2021Date of Patent: August 9, 2022Assignee: ADDITIVE IMPLANTS, INC.Inventors: John R. Ehteshami, Mahyar Zoghi
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Publication number: 20220151798Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: ApplicationFiled: January 31, 2022Publication date: May 19, 2022Applicant: Additive Implants, Inc.Inventors: John R. EHTESHAMI, Mahyar ZOGHI
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Patent number: 11234838Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: GrantFiled: September 24, 2019Date of Patent: February 1, 2022Assignee: Additive Implants, Inc.Inventors: John R. Ehteshami, Mahyar Zoghi
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Patent number: 11123201Abstract: Intervertebral implant systems include spacers that may have solid and porous bodies integrally formed together as a single part. The bone-facing sides of the spacers include asymmetric lobes which may include solid and/or porous portions. Bone anchor holes may extend through the spacers and lobes, to receive bone anchors. A helically fluted bone anchor may be received in the bone anchor holes.Type: GrantFiled: September 23, 2020Date of Patent: September 21, 2021Assignee: ADDITIVE IMPLANTS, INC.Inventors: John R. Ehteshami, Mahyar Zoghi
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Patent number: 11109981Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: GrantFiled: April 12, 2019Date of Patent: September 7, 2021Assignee: ADDITIVE IMPLANTS, INC.Inventor: John R. Ehteshami
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Patent number: 11045328Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: GrantFiled: April 12, 2019Date of Patent: June 29, 2021Assignee: ADDITIVE IMPLANTS, INC.Inventor: John R. Ehteshami
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Publication number: 20210085478Abstract: Intervertebral implant systems include spacers that may have solid and porous bodies integrally formed together as a single part. The bone-facing sides of the spacers include asymmetric lobes which may include solid and/or porous portions. Bone anchor holes may extend through the spacers and lobes, to receive bone anchors. A helically fluted bone anchor may be received in the bone anchor holes.Type: ApplicationFiled: September 23, 2020Publication date: March 25, 2021Inventors: John R. Ehteshami, Mahyar Zoghi
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Publication number: 20200197050Abstract: An intervertebral implant for spondylolisthesis correction includes a superior side with serrations angled superiorly and toward the implant insertion direction, an inferior side with serrations angled inferiorly and opposite the implant insertion direction, and an instrument connection feature. An instrument for connection to the implant includes an implant connection feature movable between unlocked and locked states, and a friction-reducing feature movable between disengaged and engaged states. The instrument has a first state, in which the implant connection feature is in the unlocked state and the friction-reducing feature is in the disengaged state; a second state, in which the implant connection feature is in the locked state and the friction-reducing feature is in the engaged state; and a third state, in which the implant connection feature is in the locked state and the friction-reducing feature is in the disengaged state. Methods of apparatus assembly and surgery are disclosed.Type: ApplicationFiled: December 17, 2019Publication date: June 25, 2020Inventor: John R. Ehteshami
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Publication number: 20200078191Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: ApplicationFiled: September 24, 2019Publication date: March 12, 2020Inventors: John R. Ehteshami, Mahyar Zoghi
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Publication number: 20200078188Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: ApplicationFiled: April 12, 2019Publication date: March 12, 2020Inventor: John R. EHTESHAMI
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Publication number: 20200078189Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: ApplicationFiled: April 12, 2019Publication date: March 12, 2020Inventor: John R. EHTESHAMI
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Patent number: 10299938Abstract: Intervertebral spacer implants with dynamic load spreading features responsive to external loads and having attachment mechanisms. The dynamic load spreading features having a native state and a loaded state, which complements vertebral end plate geometry and disperses load to the epiphyseal rim.Type: GrantFiled: September 7, 2018Date of Patent: May 28, 2019Inventor: John R. Ehteshami
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Patent number: D882779Type: GrantFiled: December 7, 2018Date of Patent: April 28, 2020Assignee: Additive Implants, Inc.Inventor: John R. Ehteshami