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

Robert B. Graybill — 6 Patents

ARArbitron: 4 patents #16 of 49Top 35%
Lockheed Martin: 1 patents #2,818 of 6,507Top 45%
Ellicott City, MD: #234 of 1,185 inventorsTop 20%
Maryland: #5,557 of 35,612 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Robert B. Graybill has been granted 6 US patents while listed as an inventor at Arbitron. The first was granted in 1993 and the most recent in June 2011. Robert B. Graybill ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Robert B. Graybill in Ellicott City, MD, US.

Patents per Year

Patents granted per year, 1993 to 2011Bar chart with a peak of 1 patents in 1993.peak 11993: 1 patents19931995: 1 patents19951998: 1 patents19982002: 1 patents20022006: 1 patents20062011: 1 patents2011

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7961881 Apparatus and methods for including codes in audio signals James M. Jensen, Wendell Lynch, Michael M. Perelshteyn, Sayed Hassan, Wayne Sabin 2011-06-14 $4,367,000
6996237 Apparatus and methods for including codes in audio signals James M. Jensen, Wendell Lynch, Michael M. Perelshteyn, Sayed Hassan, Wayne Sabin 2006-02-07 $4,989,000
6421445 Apparatus and methods for including codes in audio signals James M. Jensen, Wendell Lynch, Michael M. Perelshteyn, Sayed Hassan, Wayne Sabin 2002-07-16 $7,609,000
5764763 Apparatus and methods for including codes in audio signals and decoding James M. Jensen, Wendell Lynch, Michael M. Perelshteyn, Sayed Hassan, Wayne Sabin 1998-06-09
5450490 Apparatus and methods for including codes in audio signals and decoding James M. Jensen, Sayed Hassan, Wendell Lynch, Wayne Sabin 1995-09-12
5179714 Parallel bit serial data processor 1993-01-12 $14,475,000