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USPTO Patent Rankings Data through Dec 31, 2025
EE

Erwin Eichen — 6 Patents

EDEnergy Conversion Devices: 4 patents #57 of 231Top 25%
OCOvonic Synthetic Materials Company: 2 patents #13 of 36Top 40%
Beverly Hills, MI: #257 of 1,381 inventorsTop 20%
Michigan: #15,817 of 86,293 inventorsTop 20%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Erwin Eichen has been granted 6 US patents while listed as an inventor at Energy Conversion Devices. The first was granted in 1986 and the most recent in December 1987. Erwin Eichen ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Erwin Eichen in Beverly Hills, MI, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4716083 Disordered coating James D. Flasck 1987-12-29
4708653 Dental drill bit having disordered, wear resistant boron carbon external coating James D. Flasck 1987-11-24
4594973 Cross head for internal combustion engine David D. Allred, James D. Flasck 1986-06-17 $1,178,000
4594294 Multilayer coating including disordered, wear resistant boron carbon external coating James D. Flasck 1986-06-10 $1,122,000
4590031 Molding tool and method James D. Flasck 1986-05-20 $364,000
4568614 Steel article having a disordered silicon oxide coating thereon and method of preparing the coating John Keem 1986-02-04 $1,417,000