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

Darrell L. Helms — 4 Patents

E-E-Systems: 4 patents #17 of 229Top 8%
Tucson, AZ: #1,522 of 6,004 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
Darrell L. Helms has been granted 4 US patents while listed as an inventor at E-Systems. The first was granted in 1986 and the most recent in September 1998. Darrell L. Helms ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Darrell L. Helms in Tucson, AZ, US.

Patents per Year

Patents granted per year, 1986 to 1998Bar chart with a peak of 2 patents in 1998.peak 21986: 1 patents19861988: 1 patents19881998: 2 patents1998

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5815119 Integrated stacked patch antenna polarizer circularly polarized integrated stacked dual-band patch antenna James R. Sherman, Barry B. Pruett 1998-09-29
5757324 Low profile antenna array for land-based, mobile radio frequency communication system David A. Boyd, Anton S. Gecan 1998-05-26
4786914 Meanderline polarization twister Te-Kao Wu 1988-11-22 $5,298,000
4587525 180 degree dipole phase shifter Kenneth M. Parsons 1986-05-06 $6,804,000