PATENTS RELATED TO BONE SCREWS

Professor Demchick's Patent Services

Paul H. Demchick, United States Registered Patent Agent
(United States Patent and Trademark Office Registration 52,808)

PATENTS RELATED TO BONE SCREWS

Dr. Demchick has handled client patent matters related to bone screws.

Dr. Demchick is a scientist with a quarter of a century of research experience in academic, industrial and governmental settings.
If you are considering patent protection for an invention, Dr. Demchick will be glad to discuss the matter with you. There is no charge for an initial discussion.
The following sampling is to give you some sense of the types of bone screws related inventions which have received United States patent protection. The patent list is not exhaustive and is certainly not a substitute for a proper patent search . It should be noted that only U.S. Patents are included.
It should be noted that spelling, form and typographical errors in the original patents are preserved here.

Medical implant with a secured bone screw (United States Patent 7,160,303)
Distal radius bone plating system with locking and non-locking screws (United States Patent 7,137,987)
Compression bone screw device (United States Patent 7,135,023)
System and device for measuring bone screws (United States Patent 7,111,411)
Screws of cortical bone and method of manufacture thereof (United States Patent 7,094,239)
Powered bone screw device (United States Patent 7,087,059)
Polyaxial bone screw (United States Patent 7,087,057)
Fixation screw, graft ligament anchor assembly, and method for securing a graft ligament in a bone tunnel (United States Patent 7,083,647)
Screws of cortical bone and method of manufacture thereof (United States Patent 7,063,702)
Screws of cortical bone having a trailing end configured to cooperatively engage an implant (United States Patent 7,063,701)
Bone plate and resilient screw system allowing bi-directional assembly (United States Patent 7,048,739)
Compression bone screw (United States Patent 7,044,953)
Self-tapping screw for small-bone surgery (United States Patent 7,037,309)
Medical appliance for bridging and stabilizing spaced apart bone segments having a bone screw locking system (United States Patent 6,989,013)
Cannulated internally threaded bone screw with aperatured insert (United States Patent 6,981,974)
Interbody spinal implant with trailing end adapted to receive bone screws (United States Patent 6,972,019)
Anterior cervical plating system and bone screw (United States Patent 6,969,390)
Polyaxial bone screw locking mechanism (United States Patent 6,964,666)
Multi-angular fastening apparatus and method for surgical bone screw/plate systems (United States Patent 6,955,677)
Bone screw for use in orthopaedic surgery (United States Patent 6,949,100)
Method and apparatus for percutaneously securing a bone screw and a bone plate to a bone of a patient (United States Patent 6,916,323)
Self-tapping resorbable two-piece bone screw (United States Patent 6,916,321)
Angle-adjustable bone screw and fixation device (United States Patent 6,893,443)
Split ring bone screw for a spinal fixation system (United States Patent 6,887,242)
Method for drilling bone, in particular for setting a pedicle screw, equipment, instrument and control device for implementing said method (United States Patent 6,796,985)
Bone screw comprising a device for electrostimulation (United States Patent 6,778,861)
Bone screw fastener and apparatus for inserting and removing same (United States Patent 6,755,836)
Bone screw (United States Patent 6,755,835)
System and method for reinforcing bone in preparation for screw implantation (United States Patent 6,752,809)
Bone screw, particularly for use with external fixators in fracture stabilization (United States Patent 6,749,611)
Bone screw (United States Patent 6,736,820)
Bone screw and fastening tool for same (United States Patent 6,723,100)
Polyaxial bone screw with spline capture connection (United States Patent 6,716,214)
Locking mechanism for a bone screw (United States Patent 6,702,817)
Bone screw for external fixators (United States Patent 6,699,251)
Bone plate and screw retaining mechanism (United States Patent 6,695,846)
Method utilizing chemical bonding to improve the bone screw fixation interface (United States Patent 6,666,870)
System for bone screw insertion (United States Patent 6,663,642)
Bone screw with two-part screw head (United States Patent 6,663,635)
Bone screw (United States Patent 6,663,634)
Multi-axial bone screw assembly (United States Patent 6,660,004)
Bone screw with helical spring (United States Patent 6,656,184)
Split ring bone screw for a spinal fixation system (United States Patent 6,623,485)
Anterior cervical plating system and bone screw (United States Patent 6,620,163)
Powered bone screw device (United States Patent 6,602,260)
Bone screw retaining system (United States Patent 6,602,255)
Connection of a bone screw to a bone plate (United States Patent 6,595,993)
Bone screw (United States Patent 6,585,740)
Bone screw (United States Patent 6,540,749)
Bone plate for splinting a fracture at a bone with a plurality of bone screws (United States Patent 6,540,746)
Locking element for locking at least two bone screws to an orthopedic device (United States Patent 6,527,776)
Allograft bone fixation screw (United States Patent 6,506,192)
Bone screw, method for producing the threads thereof and drill for drilling holes therefor (United States Patent 6,503,252)
Facet screw and bone allograft intervertebral support and fusion system (United States Patent 6,485,518)
Bone screw having bioresorbable proximal shaft portion (United States Patent 6,471,707)
Bone screw (United States Patent 6,471,705)
Multi-angle bone screw assembly using shape-memory technology (United States Patent 6,454,773)
Open head bone screw closure with threaded boss (United States Patent 6,440,132)
Cannulated internally threaded bone screw and reduction driver device (United States Patent 6,436,100)
Sleeve-shaped device to retain screws while these are turned into an object such as a bone by means of a screw driver (United States Patent 6,415,693)
Bone plate assembly including a screw retaining member (United States Patent 6,413,259)
Strain-inducing conical screw for stimulating bone transplant growth (United States Patent 6,398,786)
Surgical bone screw (United States Patent 6,368,322)
Lockable swivel head bone screw (United States Patent 6,368,321)
Spinal implant with bone screws (United States Patent 6,364,880)
Bone screw threaded plug closure with central set screw (United States Patent 6,361,535)
Bone screw for anchoring a marrow nail (United States Patent 6,355,043)
Instrument and process for the minimum distance verification between two teeth for the placement of one or two bone integrated cylindrical or screwed type implants in dentistry (United States Patent 6,347,940)
Multidirectional pivoting bone screw and fixation system (United States Patent 6,309,391)
Bone screw (United States Patent 6,306,140)
Multi-angle bone screw assembly using shape-memory technology (United States Patent 6,287,311)
Multi-axial bone screw assembly (United States Patent 6,280,442)
Cortical bone screw (United States Patent 6,258,092)
Bone plate and bone screw guide mechanism (United States Patent 6,235,034)
Bone screw threaded plug closure with central set screw (United States Patent 6,224,598)
Bone screw (United States Patent 6,168,597)
Allograft bone fixation screw method and apparatus (United States Patent 6,162,225)
Pivotal securing system at a bone screw (United States Patent 6,146,383)
Multi-angle bone screw assembly using shape-memory technology (United States Patent 6,132,434)
Bi-fed offset pitch bone screw (United States Patent 6,129,730)
Allograft bone fixation screw method and apparatus (United States Patent 6,099,529)
Bone screw and method for manufacturing said screw (United States Patent 6,083,227)
Absorbable bone screw and tool for its insertion (United States Patent 6,077,267)
Method of enabling bone screws to be installed at an angle in underlying bone (United States Patent 6,077,266)
Bone fixing screws (United States Patent 6,074,393)
Multi-axial bone screw assembly (United States Patent 6,053,917)
Threaded washer and bone screw apparatus (United States Patent 6,048,344)
Bone screw system (United States Patent 6,048,343)
Cortical bone interference screw (United States Patent 6,045,554)
Mechanical system for blind nail-hole alignment of bone screws (United States Patent 6,027,506)
Bone fixation screw system (United States Patent 6,022,352)
Recess drive bone screw and cooperable driving tool (United States Patent 6,016,727)
Screw device with threaded head for permitting the coaptation of two bone fragments (United States Patent 6,001,101)
Rotationally ratcheting bone screw (United States Patent 5,997,538)
Bone screw shimming and bone graft containment system and method (United States Patent 5,984,926)
Threaded insert for bone plate screw hole (United States Patent 5,976,141)
Tapered bone screw with continuously varying pitch (United States Patent 5,964,768)
Multi-angle bone screw assembly using shape memory technology (United States Patent 5,954,725)
Orthopedic prosthesis employing bone screws and cement (United States Patent 5,941,911)
Locking pin or screw device for an osteosynthesis plate or for the coaptation of bone fragments (United States Patent 5,928,236)
Medical implant with a secured bone screw (United States Patent 7,160,303)
Distal radius bone plating system with locking and non-locking screws (United States Patent 7,137,987)
Compression bone screw device (United States Patent 7,135,023)
System and device for measuring bone screws (United States Patent 7,111,411)
Screws of cortical bone and method of manufacture thereof (United States Patent 7,094,239)
Powered bone screw device (United States Patent 7,087,059)
Polyaxial bone screw (United States Patent 7,087,057)
Fixation screw, graft ligament anchor assembly, and method for securing a graft ligament in a bone tunnel (United States Patent 7,083,647)
Screws of cortical bone and method of manufacture thereof (United States Patent 7,063,702)
Screws of cortical bone having a trailing end configured to cooperatively engage an implant (United States Patent 7,063,701)
Bone plate and resilient screw system allowing bi-directional assembly (United States Patent 7,048,739)
Compression bone screw (United States Patent 7,044,953)
Self-tapping screw for small-bone surgery (United States Patent 7,037,309)
Medical appliance for bridging and stabilizing spaced apart bone segments having a bone screw locking system (United States Patent 6,989,013)
Cannulated internally threaded bone screw with aperatured insert (United States Patent 6,981,974)
Interbody spinal implant with trailing end adapted to receive bone screws (United States Patent 6,972,019)
Anterior cervical plating system and bone screw (United States Patent 6,969,390)
Polyaxial bone screw locking mechanism (United States Patent 6,964,666)
Multi-angular fastening apparatus and method for surgical bone screw/plate systems (United States Patent 6,955,677)
Bone screw for use in orthopaedic surgery (United States Patent 6,949,100)
Method and apparatus for percutaneously securing a bone screw and a bone plate to a bone of a patient (United States Patent 6,916,323)
Self-tapping resorbable two-piece bone screw (United States Patent 6,916,321)
Angle-adjustable bone screw and fixation device (United States Patent 6,893,443)
Split ring bone screw for a spinal fixation system (United States Patent 6,887,242)
Method for drilling bone, in particular for setting a pedicle screw, equipment, instrument and control device for implementing said method (United States Patent 6,796,985)
Bone screw comprising a device for electrostimulation (United States Patent 6,778,861)
Bone screw fastener and apparatus for inserting and removing same (United States Patent 6,755,836)
Bone screw (United States Patent 6,755,835)
System and method for reinforcing bone in preparation for screw implantation (United States Patent 6,752,809)
Bone screw, particularly for use with external fixators in fracture stabilization (United States Patent 6,749,611)
Bone screw (United States Patent 6,736,820)
Bone screw and fastening tool for same (United States Patent 6,723,100)
Polyaxial bone screw with spline capture connection (United States Patent 6,716,214)
Locking mechanism for a bone screw (United States Patent 6,702,817)
Bone screw for external fixators (United States Patent 6,699,251)
Bone plate and screw retaining mechanism (United States Patent 6,695,846)
Method utilizing chemical bonding to improve the bone screw fixation interface (United States Patent 6,666,870)
System for bone screw insertion (United States Patent 6,663,642)
Bone screw with two-part screw head (United States Patent 6,663,635)
Bone screw (United States Patent 6,663,634)
Multi-axial bone screw assembly (United States Patent 6,660,004)
Bone screw with helical spring (United States Patent 6,656,184)
Split ring bone screw for a spinal fixation system (United States Patent 6,623,485)
Anterior cervical plating system and bone screw (United States Patent 6,620,163)
Powered bone screw device (United States Patent 6,602,260)
Bone screw retaining system (United States Patent 6,602,255)
Connection of a bone screw to a bone plate (United States Patent 6,595,993)
Bone screw (United States Patent 6,585,740)
Bone screw (United States Patent 6,540,749)
Bone plate for splinting a fracture at a bone with a plurality of bone screws (United States Patent 6,540,746)
Locking element for locking at least two bone screws to an orthopedic device (United States Patent 6,527,776)
Allograft bone fixation screw (United States Patent 6,506,192)
Bone screw, method for producing the threads thereof and drill for drilling holes therefor (United States Patent 6,503,252)
Facet screw and bone allograft intervertebral support and fusion system (United States Patent 6,485,518)
Bone screw having bioresorbable proximal shaft portion (United States Patent 6,471,707)
Bone screw (United States Patent 6,471,705)
Multi-angle bone screw assembly using shape-memory technology (United States Patent 6,454,773)
Open head bone screw closure with threaded boss (United States Patent 6,440,132)
Cannulated internally threaded bone screw and reduction driver device (United States Patent 6,436,100)
Sleeve-shaped device to retain screws while these are turned into an object such as a bone by means of a screw driver (United States Patent 6,415,693)
Bone plate assembly including a screw retaining member (United States Patent 6,413,259)
Strain-inducing conical screw for stimulating bone transplant growth (United States Patent 6,398,786)
Surgical bone screw (United States Patent 6,368,322)
Lockable swivel head bone screw (United States Patent 6,368,321)
Spinal implant with bone screws (United States Patent 6,364,880)
Bone screw threaded plug closure with central set screw (United States Patent 6,361,535)
Bone screw for anchoring a marrow nail (United States Patent 6,355,043)
Instrument and process for the minimum distance verification between two teeth for the placement of one or two bone integrated cylindrical or screwed type implants in dentistry (United States Patent 6,347,940)
Multidirectional pivoting bone screw and fixation system (United States Patent 6,309,391)
Bone screw (United States Patent 6,306,140)
Multi-angle bone screw assembly using shape-memory technology (United States Patent 6,287,311)
Multi-axial bone screw assembly (United States Patent 6,280,442)
Cortical bone screw (United States Patent 6,258,092)
Bone plate and bone screw guide mechanism (United States Patent 6,235,034)
Bone screw threaded plug closure with central set screw (United States Patent 6,224,598)
Bone screw (United States Patent 6,168,597)
Allograft bone fixation screw method and apparatus (United States Patent 6,162,225)
Pivotal securing system at a bone screw (United States Patent 6,146,383)
Multi-angle bone screw assembly using shape-memory technology (United States Patent 6,132,434)
Bi-fed offset pitch bone screw (United States Patent 6,129,730)
Allograft bone fixation screw method and apparatus (United States Patent 6,099,529)
Bone screw and method for manufacturing said screw (United States Patent 6,083,227)
Absorbable bone screw and tool for its insertion (United States Patent 6,077,267)
Method of enabling bone screws to be installed at an angle in underlying bone (United States Patent 6,077,266)
Bone fixing screws (United States Patent 6,074,393)
Multi-axial bone screw assembly (United States Patent 6,053,917)
Threaded washer and bone screw apparatus (United States Patent 6,048,344)
Bone screw system (United States Patent 6,048,343)
Cortical bone interference screw (United States Patent 6,045,554)
Mechanical system for blind nail-hole alignment of bone screws (United States Patent 6,027,506)
Bone fixation screw system (United States Patent 6,022,352)
Recess drive bone screw and cooperable driving tool (United States Patent 6,016,727)
Screw device with threaded head for permitting the coaptation of two bone fragments (United States Patent 6,001,101)
Rotationally ratcheting bone screw (United States Patent 5,997,538)
Bone screw shimming and bone graft containment system and method (United States Patent 5,984,926)
Threaded insert for bone plate screw hole (United States Patent 5,976,141)
Tapered bone screw with continuously varying pitch (United States Patent 5,964,768)
Multi-angle bone screw assembly using shape memory technology (United States Patent 5,954,725)
Orthopedic prosthesis employing bone screws and cement (United States Patent 5,941,911)
Locking pin or screw device for an osteosynthesis plate or for the coaptation of bone fragments (United States Patent 5,928,236)

Although his recognition as a registered patent agent permits him to represent others in all patent matters before the United States Patent and Trademark Office, Dr. Demchick limits his practice to patent matters involving inventions for which he is confident that his expertise will allow him to serve his client well. He will gladly discuss whether he is comfortable handling cases involving inventions in a particular field. He will err on the side of declining cases if he has uncertainty about his ability to do what is needed in the case. Dr. Demchick does not represent clients in court. However, he refers clients to a patent attorney who does represent others in court, if it appears likely that patent related representation in court is appropriate. Dr. Demchick prepares and files non-provisional (regular) patent applications and provisional patent applications. He prepares and files utility patent applications and design patent applications. He prepares and files U.S. patent applications and international patent applications under the Patent Cooperation Treaty (PCT). He prepares and files applications to enter the U.S. National Phase for inventions for which international patent applications (PCT) were already filed. One of the matters he discusses with each client or potential client is which type of application(s) best meets that client's needs. He usually does a patent search (patentability search) as part of the preparation of a patent application. He discusses the value of patent searching with each inventor before agreeing to prepare a patent application for that inventor.