Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David E. Mroczka — 10 Patents

WAWalbro: 4 patents #52 of 212Top 25%
Cromwell, CT: #17 of 129 inventorsTop 15%
Connecticut: #4,584 of 34,797 inventorsTop 15%
Overall (All Time): #481,000 of 4,157,543Top 15%
10 Patents All Time
David E. Mroczka has been granted 10 US patents while listed as an inventor at Walbro. The first was granted in 1997 and the most recent in July 2014. David E. Mroczka ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list David E. Mroczka in Cromwell, CT, US.

Patents per Year

Patents granted per year, 1997 to 2014Bar chart with a peak of 3 patents in 1997.peak 31997: 3 patents19971998: 2 patents19982000: 2 patents20002013: 1 patents20132014: 2 patents2014

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8789730 Backpack with collapsible stretcher and collapsible wheel assembly 2014-07-29
8733334 Toy hand grenade with timer mechanism Kevin Mroczka 2014-05-27
8469011 Toy hand grenade Jack Mroczka 2013-06-25
6101660 Toothbrush bristle guard Maryann Vanderventer 2000-08-15
6039548 Fuel pump with controlled vapor intake Wayne A. Ley, Edward J. Talaski 2000-03-21
5809975 In tank fuel pump and reservoir with stand pipe Charles H. Tuckey, Laurie J. Swanson 1998-09-22 $1,271,000
5806878 Collapsible wheelbarrow/stretcher Edward J. Mroczka 1998-09-15
5682857 Fuel rail mounting clip Paul F. Briggs, George H. Bucci, Allan Tomasco 1997-11-04 $733,000
5655302 Shaving cream dispensing razor 1997-08-12
5647329 In-tank fuel pump and reservoir George H. Bucci, Kirk D. Fournier, Daniel A. Gilmour, Wayne T. Lipinski, Charles H. Tuckey 1997-07-15 $386,000