Location History:
- Balto, MD (US) (2004)
- Nottingham, MD (US) (2013)
- Baltimore, MD (US) (2005 - 2024)
Company Filing History:
21 out of 44 
8 out of 51,873 
2 out of 2 Years Active: 2004-2024
Title: **David Patrick Calder: A Pioneer in Acoustic Innovations**
Introduction
David Patrick Calder, based in Baltimore, MD, is an accomplished inventor known for his significant contributions to the field of acoustic technology. With 26 patents to his name, Calder has made a notable impact on the design and functionality of acoustic liners, enhancing both their efficiency and performance.
Latest Patents
Calder's most recent patents illustrate his innovative approach to acoustic designs. One notable invention is the "Continuous Degree of Freedom Acoustic Cores." This acoustic liner features a face sheet, a spaced back sheet, and a core layer with a cellular structure. The design incorporates first resonant cells, which are coupled to the back sheet, showcasing a unique configuration that enhances acoustic absorption.
Another of his latest patents focuses on "Acoustic Liners with Enhanced Acoustic Absorption and Reduced Drag Characteristics." This invention includes an acoustic core with an array of resonant cells, designed to improve sound attenuation. The structure features oblique polyhedral elements and sound-attenuating protuberances, along with a reticulate membrane and support lattice that collectively enhance the acoustic liner's performance.
Career Highlights
Throughout his career, Calder has worked with prominent companies in the aerospace and engineering sectors. He has held positions at Mra Systems, Inc. and General Electric Company, where he applied his acoustic expertise to develop innovative solutions. His commitment to advancing acoustic technologies has solidified his reputation as a leading inventor in his field.
Collaborations
David Patrick Calder has collaborated with notable professionals in the industry, including Graham Frank Howarth and Andrew Michael Roach. These partnerships have facilitated the exchange of ideas and fostered collective advancements in acoustic innovation.
Conclusion
David Patrick Calder exemplifies the spirit of innovation through his extensive work in acoustic technologies. With a robust portfolio of patents and collaborative efforts with esteemed colleagues and companies, he continues to push the boundaries of what is possible in the realm of acoustics. His contributions not only enhance the industry but also pave the way for future advancements in sound technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.