Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
AR

Andrew J. Roszkowski — 14 Patents

EBEnergizer Brands: 8 patents #8 of 151Top 6%
SBSpectrum Brands: 4 patents #80 of 293Top 30%
RARayovac: 1 patents #78 of 170Top 50%
RORovcal: 1 patents #45 of 92Top 50%
Waunakee, WI: #12 of 150 inventorsTop 8%
Wisconsin: #3,196 of 40,088 inventorsTop 8%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Andrew J. Roszkowski has been granted 14 US patents while listed as an inventor at Energizer Brands. The first was granted in 2007 and the most recent in June 2025. Andrew J. Roszkowski ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Andrew J. Roszkowski in Waunakee, WI, US.

Patents per Year

Patents granted per year, 2007 to 2025Bar chart with a peak of 3 patents in 2023.peak 32007: 1 patents20072010: 1 patents20102014: 2 patents20142016: 2 patents20162020: 1 patents20202021: 1 patents20212022: 1 patents20222023: 3 patents20232025: 2 patents2025

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12341186 Alkaline electrochemical cell with improved anode and separator components M. Edgar Armacanqui, Casey Imhoff, Donald Raymond Crowe, Matthew Evans, John Hadley +3 more 2025-06-24
12266820 Separator for alkaline cells M. Edgar Armacanqui, Donald Raymond Crowe, Enqing Zhu, John Hadley, Matthew Hennek +1 more 2025-04-01
11784375 Separator for metal air cells M. Edgar Armacanqui, Donald Raymond Crowe, Enqing Zhu, John Hadley, Matthew Hennek +1 more 2023-10-10
11757088 Alkaline electrochemical cell with improved anode and separator components M. Edgar Armacanqui, Casey Imhoff, Donald Raymond Crowe, Matthew Evans, John Hadley +3 more 2023-09-12
11670823 Separator for alkaline cells M. Edgar Armacanqui, Donald Raymond Crowe, Enqing Zhu, John Hadley, Matthew Hennek +1 more 2023-06-06
11264607 Alkaline electrochemical cell with improved anode and separator components M. Edgar Armacanqui, Casey Imhoff, Donald Raymond Crowe, Matthew Evans, John Hadley +3 more 2022-03-01
11133497 Alkaline cell with improved discharge efficiency M. Edgar Armacanqui, Wen Li, Donald Raymond Crowe, John Hadley, Janna L. Rose 2021-09-28
10693125 Alkaline electrochemical cell with improved anode and separator components M. Edgar Armacanqui, Casey Imhoff, Donald Raymond Crowe, Matthew Evans, John Hadley +3 more 2020-06-23
9455440 Alkaline cell with improved high rate capacity M. Edgar Armacanqui, Wen Li, John Hadley, Janna L. Rose 2016-09-27 $35,825,000
9252430 Alkaline cell with improved high rate capability M. Edgar Armacanqui, Wen Li, John Hadley, Janna L. Rose 2016-02-02 $27,407,000
8728659 Alkaline cell with additive for improved discharge performance M. Edgar Armacanqui, Donald Raymond Crowe 2014-05-20 $20,267,000
8691439 Alkaline cell with performance enhancing additives Ernest Ndzebet, Mario Destephen, William C. Bushong, M. Edgar Armacanqui, Viet Vu 2014-04-08 $22,033,000
7749654 Alkaline cell with performance enhancing additives Ernest Ndzebet, Mario Destephen, William C. Bushong, M. Edgar Armacanqui, Viet Vu 2010-07-06
7226696 Alkaline cell with performance enhancing additives Ernest Ndzebet, M. Edgar Armacanqui, Mario Destephen, William C. Bushong, Viet Vu 2007-06-05 $6,262,000