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CH

Charles D. Hayes — 4 Patents

UNUnknown: 1 patents #29,356 of 83,584Top 40%
Glen Burnie, MD: #29 of 214 inventorsTop 15%
Maryland: #8,090 of 35,612 inventorsTop 25%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Charles D. Hayes has been granted 4 US patents while listed as an inventor at Unknown. The first was granted in 1987 and the most recent in March 2024. Charles D. Hayes ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Charles D. Hayes in Glen Burnie, MD, US.

Patents per Year

Patents granted per year, 1987 to 2024Bar chart with a peak of 1 patents in 1987.peak 11987: 1 patents19871998: 1 patents19982003: 1 patents20032024: 1 patents2024

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11931790 Punching device making large rectangular holes in rectangular tubing and method thereof — 2024-03-19
6609071 System for monitoring and controlling pressure and concentration values in a fluid conduit Philip Shapiro, John Davis-Reinhold, Julian Warhurst 2003-08-19
D397734 Hand operated electronic controller Clay D. Allen, James P. Dudley, Kyle Fields 1998-09-01
4668029 Stackable, portable filing cabinet modules Bernard L. Maizlish, Stanley J. Cardiges 1987-05-26

Frequent Collaborators

Bernard L. Maizlish1 shared
Clay D. Allen1 shared
James P. Dudley1 shared
Stanley J. Cardiges1 shared
Philip Shapiro1 shared
John Davis-Reinhold1 shared

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