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

Keith D. Jacob — 14 Patents

MUMulti-Elmac: 5 patents #1 of 7Top 15%
CMC-D Marketing: 4 patents #1 of 2Top 50%
DPDimango Products: 1 patents #3 of 6Top 50%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Ann Arbor, MI: #637 of 6,071 inventorsTop 15%
Michigan: #6,429 of 86,293 inventorsTop 8%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
Keith D. Jacob has been granted 14 US patents while listed as an inventor at Multi-Elmac. The first was granted in 1980 and the most recent in March 1990. Keith D. Jacob ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Keith D. Jacob in Ann Arbor, MI, US.

Patents per Year

Patents granted per year, 1980 to 1990Bar chart with a peak of 4 patents in 1987.peak 41980: 1 patents19801981: 1 patents19811982: 1 patents19821984: 1 patents19841985: 1 patents19851986: 2 patents19861987: 4 patents19871988: 1 patents19881989: 1 patents19891990: 1 patents1990

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
4908604 Remotely controlled security system 1990-03-13
4818920 Digital oem ceiling fan 1989-04-04
4749917 Two-tone dimmer circuit Paul G. Angott 1988-06-07
4701022 Day/night mirror 1987-10-20
4690508 Liquid crystal closed-loop controlled mirror systems 1987-09-01
4688895 L. C. sunroof panel with adjustable shading 1987-08-25
4641922 Liquid crystal panel shade 1987-02-10
4593412 Integrated oscillator antenna for low power, low harmonic radiation 1986-06-03
4574247 FM Signal demodulator 1986-03-04
4538973 Remotely controlled ceiling fan and light circuit Paul G. Angott 1985-09-03
4426637 Combination encoder-decoder integrated circuit device William C. Apple 1984-01-17
4315249 Data communication system for activating remote loads William C. Apple 1982-02-09
4305060 Decoder circuitry for selectively activating loads William C. Apple 1981-12-08
4201451 Wide angled rear view mirror apparatus 1980-05-06