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

Melvyn Engel — 4 Patents

WAWavephore: 3 patents #4 of 13Top 35%
Scottsdale, AZ: #855 of 3,386 inventorsTop 30%
Arizona: #8,235 of 32,909 inventorsTop 30%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Melvyn Engel has been granted 4 US patents while listed as an inventor at Wavephore. The first was granted in 1990 and the most recent in March 1998. Melvyn Engel ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Melvyn Engel in Scottsdale, AZ, US.

Patents per Year

Patents granted per year, 1990 to 1998Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19901993: 1 patents19931995: 1 patents19951998: 1 patents1998

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5731841 High performance data tuner for video systems Glen Var Rosenbaum 1998-03-24 $2,771,000
5457714 Software controlled adaptive delta modulator Michael D. Bethel, Michael J. Smith, Michael A. Sowell 1995-10-10 $3,365,000
5208595 Digitally controlled adaptive slew rate delta modulator Michael A. Sowell, Michael D. Bethel 1993-05-04
4925495 Washing apparatus and method William Crisp, Richard C. Kudlicki, Judson Smith 1990-05-15