This inventor holds 31 USPTO granted patents and 3 published patent applications. Top assignees: Texas Instruments Corporation, Raytheon Company, Raytheon Ti Systems, Inc.. Active years: 1994-2026.
Location History:
- Mesquite, TX (US) (1994 - 2002)
- Dallas, TX (US) (2009 - 2011)
- Garland, TX (US) (2000 - 2024)
Company Filing History:
19 out of 29,854 
11 out of 8,310 
1 out of 33 
Years Active: 1994-2026
Areas of Expertise:
Title: The Innovative Journey of John Charles Ehmke
Introduction: John Charles Ehmke, based in Garland, TX, is a prolific inventor with an impressive portfolio of 30 patents. His contributions to the fields of technology and engineering have made significant impacts, particularly through his innovative approaches in wafer bonding and optical film stacks.
Latest Patents: Ehmke's latest inventions include the "Vertical shear weld wafer bonding." This patent outlines a method where a first metal layer is strategically positioned along the periphery of a cavity formed between two substrates. The inclusion of a cantilevered second metal layer enhances the bonding process while also preventing contaminants from entering the cavity. Another notable invention is the "Dark mirror thin films," which involves an intricate optical film stack. This technology integrates various layers, including inorganic and dielectric materials, to create advanced optical properties essential for numerous applications.
Career Highlights: Ehmke has lent his expertise to renowned companies such as Texas Instruments Corporation and Raytheon Company. These roles have allowed him to develop cutting-edge technologies that push the boundaries of innovation.
Collaborations: Throughout his career, Ehmke has collaborated with talented individuals like Virgil Cotoco Ararao and Charles L Goldsmith. Their combined efforts have fostered an environment of creativity that has led to groundbreaking inventions.
Conclusion: John Charles Ehmke exemplifies the spirit of innovation through his numerous patents and contributions to technology. His work continues to inspire future inventors and remains influential in the engineering landscape.