Paul Diffendaffer — 13 Patents at Unknown

Paul Diffendaffer has been granted 13 US patents while listed as an inventor at Unknown. The first was granted in 1989 and the most recent in December 2025. Paul Diffendaffer ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Paul Diffendaffer in La Cañada Flintridge, CA, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date
12503774	Metallic sheet with deposited structutred images and methods of manufacture	Laurie Johansen, Adam Trexler	2025-12-23
12077868	Metallic sheet with deposited structured images and method of manufacture	Laurie Johansen, Adam Trexler	2024-09-03
11904624	Structure for secure containment of information	Adam Trexler, Laurie Johansen, Kelda Diffendaffer	2024-02-20
11446952	Structure for secure containment of information	Adam Trexler, Laurie Johansen, Kelda Diffendaffer	2022-09-20
11434572	Metallic sheet with deposited structured images and method of manufacture	Laurie Johansen, Adam Trexler	2022-09-06
11104177	Structure for secure containment of information	Adam Trexler, Laurie Johansen, Kelda Diffendaffer	2021-08-31
10781520	Metallic sheet with deposited structured images and method of manufacture	Laurie Johansen, Adam Trexler	2020-09-22
10661594	Structure for secure containment of information	Adam Trexler, Laurie Johansen, Kelda Diffendaffer	2020-05-26
6123986	Permeable solar control film	Peter Maschwitz, Jonathan S. Payne	2000-09-26
5902634	Permeable solar control film	Peter Maschwitz, Jonathan S. Payne	1999-05-11
5400175	Ultraviolet radiation and blue light blocking polarizing lens	Laurie Johansen	1995-03-21
5177509	Ultraviolet radiation and blue light blocking polarizing lens	Laurie Johansen	1993-01-05
4878748	Ultraviolet radiation and blue light blocking polarizing lens	Laurie Johansen	1989-11-07

Paul Diffendaffer — 13 Patents

Issued Patents All Time

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