Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Alan E. Opel — 7 Patents

ATAlpheus Cleaning Technologies: 4 patents #2 of 4Top 50%
Monrovia, CA: #63 of 335 inventorsTop 20%
California: #83,669 of 386,348 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Alan E. Opel has been granted 7 US patents while listed as an inventor at Alpheus Cleaning Technologies. The first was granted in 1993 and the most recent in November 2004. Alan E. Opel ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Alan E. Opel in Monrovia, CA, US.

Patents per Year

Patents granted per year, 1993 to 2004Bar chart with a peak of 2 patents in 1993.peak 21993: 2 patents19931994: 1 patents19941996: 1 patents19962002: 2 patents20022004: 1 patents2004

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6824450 Apparatus to provide dry ice in different particle sizes to an airstream for cleaning of surfaces 2004-11-30
6447377 Dry ice blasting gun with adjustable handle Joel Londenberg 2002-09-10
6346035 Generation of an airstream with subliminable solid particles Robert S. Anderson, Philip Spivak, Oleg Zadorozhny 2002-02-12
5520572 Apparatus for producing and blasting sublimable granules on demand Philip Spivak, Oleg Zadorozhny 1996-05-28
5288028 Apparatus for enhancing the feeding of particles from a hopper Philip Spivak 1994-02-22
5249426 Apparatus for making and delivering sublimable pellets Philip Spivak, Scott M. Stratford, Oleg Zadorozhny 1993-10-05
5203794 Ice blasting apparatus Scott M. Stratford, Philip Spivak, Oleg Zadorozhny 1993-04-20