Inventor on more than 125 issued patents worldwide.
The patent record is the durable trace of invention-to-product work across two decades of building hard-technology companies.
125+ issued patents across a coherent technical zone.
The patent record concentrates in a small number of technical domains, accumulated through the company-building work at Haleos, Nuvotronics, and ongoing operating activity. Each domain reflects real invention-to-product cycles — not standalone patents filed in isolation, but inventions that traveled through prototype, program funding, manufactured hardware, and customer adoption.
Where the inventions concentrate.
RF and millimeter-wave structures. 3D-microfabricated transmission lines, waveguides, packaging, antennas, filters, and millimeter-wave components for defense and aerospace systems. The PolyStrata platform developed at Nuvotronics anchors much of this cluster.
MEMS and microfabrication. Lithography-based microfabrication processes, sealed microstructures, additive microscale processes, and precision metal microstructure manufacturing. The processes underlying much of the RF work also generated independent inventions.
Materials and composites. Defense-relevant materials, composite tooling, controlled material systems, additive composite manufacturing, and process chemistry. This domain remains active through MacroVation's current operating work.
Advanced manufacturing processes. Process scale-up methods, manufacturability-driven design, trusted-source component approaches, and the engineering discipline that converts a microfabricated prototype into a manufacturable product.
Defense electronics and systems integration. Counter-UAS payloads, RF sensing structures, electronic warfare components, and the systems context that determines whether a component contributes to a fieldable capability.
What 125+ patents actually represents.
A patent count is a vanity metric in isolation. In the context of the operating companies the inventions traveled through, it represents something more specific:
- Two operating companies built around portfolios of invention — Haleos and Nuvotronics — each acquired by a larger industry buyer.
- DARPA Phase I through Phase III program execution: the inventions reached production-relevant maturity and customer adoption, not just paper.
- Technologies that were licensed, transferred, or directly manufactured into defense and aerospace products.
- Patents filed alongside co-inventors and engineering teams — the count reflects collective invention inside operating companies, not solo paper authorship.
The point of the record is not the count. The point is the operating discipline that turned the inventions into companies, products, programs, and exits.
For the full patent list.
The complete record of issued patents is publicly searchable through the U.S. Patent and Trademark Office and Google Patents using "David W. Sherrer" or "David Sherrer" as inventor. A curated, evaluator-ranked selection is a future workstream; until that is built, the underlying public record is the authoritative source.