Location History:
- Tuscon, AZ (US) (2002)
- Tucson, AZ (US) (2010 - 2022)
Company Filing History:
9 out of 882 
1 out of 972 
1 out of 43 
Years Active: 2002-2022
Title: John Edward Greivenkamp, Jr: Innovator in Visual Measurement Technologies
Introduction
John Edward Greivenkamp, Jr. is a notable inventor based in Tucson, AZ (US). He has made significant contributions to the field of visual measurement technologies, holding a total of 10 patents. His work primarily focuses on enhancing the accuracy and efficiency of visual contrast sensitivity testing and contact lens characterization.
Latest Patents
One of his latest patents is a "System and method for the rapid measurement of the visual contrast sensitivity function." This invention utilizes a computer, a high-resolution monitor, and a patient interface to implement a visual contrast sensitivity function measurement test. More specifically, it employs a computerized video system configured to conduct a tilted-grating forced choice contrast sensitivity function test. The invention automates known measurement methods for the visual contrast sensitivity function, coupling them with a patient-interactive user interface to produce accurate quantitative results.
Another significant patent is for an "Interferometer having a reference fluid tank with a prism and a motion matching window for characterizing a contact lens." This system applies interferometry to ophthalmic applications, utilizing a low-coherence interferometer to obtain multiple measurements of a contact lens. It characterizes the surface profile of both surfaces of a contact lens, thickness profiles, and combines these measurements with index information to reconstruct a complete model of the contact lens.
Career Highlights
Throughout his career, John has worked with prominent organizations such as Johnson and Johnson Vision Care, Inc. and the University of Arizona. His experience in these institutions has allowed him to develop and refine his innovative technologies.
Collaborations
John has collaborated with notable individuals in his field, including Gregory A Williby and Russell T Spaulding. These partnerships have contributed to the advancement of his research and inventions.
Conclusion
John Edward Greivenkamp, Jr. is a distinguished inventor whose work in visual measurement technologies has made a significant impact in the field. His innovative patents continue to enhance the accuracy of visual testing and contact lens characterization.
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.