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Rejection Timeline
Rejection timeline for US 12,720,270 B2
Number of office actions in which a reference is applied, as a % of reference type
| Company Rejecting | |||||||
|---|---|---|---|---|---|---|---|
| Portfolio Abandonment Rate | Micron | SK hynix | Samsung | TSMC | |||
| Micron | 2.5% | 4.2% | 2.6%* | 3.6% | 7.0% | ||
| SK hynix | 10.0% | 14.5% | 12.6% | 15.1% | 24.2% | ||
| Samsung | 16.0% | 20.3% | 9.8% | 16.4% | 10.6% | ||
| TSMC | 1.9% | 4.0% | —* | 2.0% | 1.9% | ||
| Micron | SK hynix | Samsung | TSMC | ||
|---|---|---|---|---|---|
| Micron | +1.7% | +0.1%* | +1.1% | +4.5% | |
| SK hynix | +4.5% | +2.6% | +5.1% | +14.2% | |
| Samsung | +4.3% | −6.2% | +0.4% | −5.4% | |
| TSMC | +2.1% | —* | +0.1% | 0.0% | |
* Fewer than 20 data points · Source: U.S. Patent and Trademark Office data
Autonomous vehicles, surface and subsea vessels, aircraft, drones and UAVs
Avionics, turbines and air propulsion systems, GPS, RADAR/LiDAR, aircraft communication
Spacecraft, electric propulsion, rocket propulsion, power, payloads, material compatibility
Deep reactive ion etching, Si/SiO2 wafer processing, photolithography, atomic force microscopy, wafer bonding
High-performance compute clusters, temperature management and cooling systems, networks, three-dimensional integrated circuits (3DICs), high-bandwidth memory (HBM), integrated circuits including CPUs, GPUs, TPUs, and photonic integrated circuits
Wearable tech, biometric sensors, disease and activity monitoring
Signal processing, antenna arrangements, sensors and instrumentation
Vertex IP is owned and operated by Alexander Bost, a registered patent practitioner (USPTO Reg. No. 81,681) and former patent examiner.
After graduating from Lehigh University with a B.S. in Mechanical Engineering, Alex spent four years conducting academic research at MIT in fields spanning materials science, biology, computational neuroscience, condensed matter physics, and space systems. He earned a Master’s degree from MIT in Aeronautics and Astronautics with a focus on space propulsion, where he worked on ion electrospray propulsion systems.
Alex worked at an ion engine startup after completing his graduate degree, performing vacuum chamber testing, microelectromechanical systems (MEMS) fabrication in a Class 10 cleanroom, and laser micromachining. He helped lead a breakthrough in microfabrication techniques that improved microstructure manufacturing precision by more than 10x and ion thruster performance by more than 5x. He is a named inventor on U.S. Patent No. 11,545,351, Apparatus for Electrospray Emission.
Alex spent three years as a patent examiner with the USPTO in Art Unit 3662, examining patent applications in vehicle control and navigation with a focus on autonomous vehicles, AI/ML systems, and robotics, producing over 300 office actions during that time.
After leaving the USPTO, Alex worked at a composites manufacturing startup managing patent filings, interfacing with engineers to identify potential inventions, and educating the company about the patenting process. He passed the USPTO Patent Practitioner Registration Exam in early 2023 and spent two and a half years as a patent agent in Boston IP law firm practice before joining a patent software startup developing agentic AI tools for patent analysis. Alex founded Vertex Intellectual Property LLC with the goal of providing the best value in patent search and analytics services by leveraging his broad scientific, technical, and patent-specific background.
Outside of patent law, Alex has a Wilderness First Responder certification and enjoys being outdoors as much as possible.