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David Jackrel, Ph.D.

Outside Adviser / President, Jackrel Consulting, Inc.

Technical Patent Expertise

Optoelectronic Devices – solar cells, photodetectors, image sensors, electrochromics, telecom systems

Materials Characterization – extensive experience in a wide array of techniques, including structural, optical, 3D metrology, chemical, electrical, and mechanical measurements

Semiconductor Devices – extensive experience including optoelectronic characterization, and finite element modeling

Semiconductor Processing – extensive experience including film deposition, lithography/nano-patterning, and device fabrication

Nanotech – nanoparticle/nanowire synthesis, nanostructured films, and nano-characterization

Fibers Materials – Kevlar, spider silk, and fibers characterization
​
Industrial Chemical Processing – plasma, thermal, and wet chemical technologies​

Work Examples.

These samples are just a cross-section of David’s patent work. David has worked on many other patent applications in various technology areas – consumer electronics, textiles, smart buildings, solar cells, biodegradable materials, etc…

Nanomaterials

US 9,862,606  “Carbon allotropes”
https://patents.google.com/patent/US9862606B1/en

US 9,997,334  “Seedless particles with carbon allotropes”
https://patents.google.com/patent/US9997334B1/en

US 10,112,837  “Carbon allotropes”
https://patents.google.com/patent/US10112837B2/en

US 10,373,808 “Seedless particles with carbon allotropes”
https://patents.google.com/patent/US10373808B2/en

US 10,428,197 “Carbon and elastomer integration”
https://patents.google.com/patent/US10428197B2/en

Electrochromics

US 9,823,535 “Tungsten oxide nanostructure thin films for electrochromic devices”

https://patents.google.com/patent/US9823535B2/en

US 2018/0364541 “Flexible and multilayer electrochromic devices and methods of making the same”

https://patents.google.com/patent/US20180364541A1/en

Substantial contributions to:
US 9,581,877 “Electrochromic multi-layer devices with charge sequestration and related methods”

https://patents.google.com/patent/US9581877B2/en

US 10,007,163 “Electrochromic multi-layer devices with charge sequestration and related methods”

https://patents.google.com/patent/US10007163B2/en

US 10,386,688 “Electrochromic devices with patterned electrically conductive layers”

https://patents.google.com/patent/US10386688B1/en

Telecommunications

US 10,230,353 “Nonlinear signal filtering”

https://patents.google.com/patent/US10230353B2/en

US 2019/0036759 “Timing recovery for Nyquist shaped pulses”

https://patents.google.com/patent/US20190036759A1/en

US 2019/0123832 “Phase recovery for signals with quadrature amplitude modulation”

https://patents.google.com/patent/US20190123832A1/en

Semiconductor Optoelectronics

WO 2019/193487 “Semiconductor structure with chirp layer”

https://patents.google.com/patent/WO2019193487A1/en

Industrial Chemical Processing

US 9,767,992 “Microwave chemical processing reactor”

https://patents.google.com/patent/US9767992B1/en

US 9,812,295 “Microwave chemical processing”

https://patents.google.com/patent/US9812295B1/en

US 10,308,512 “Microwave reactor system with gas-solids separation”

https://patents.google.com/patent/US10308512B2/en

Biotechnology

US 2020/0001525 “Closed loop print process adjustment based on real time feedback”

https://patents.google.com/patent/US20200001525A1/en
 

US 2020/0031051 “Multiple image projection system for additive manufacturing”

https://patents.google.com/patent/US20200031051A1/en

Patently Strategic Podcast With David

David is also a regular co-host of the Patently Strategic Podcast. Check out this episode he hosted with Kristen, where they break down everything you need to know about patenting games – from classic board games like Monopoly and Battleship in the 1930s to the challenges of protecting modern innovations in areas like game development and VR.