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USPTO Patent Rankings Data through Dec 31, 2025
JE

John J. Ewing — 20 Patents

PIPpg Industries: 20 patents #23 of 1,216Top 2%
Lower Burrell, PA: #9 of 383 inventorsTop 3%
Pennsylvania: #3,419 of 74,527 inventorsTop 5%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
John J. Ewing has been granted 20 US patents while listed as an inventor at Ppg Industries. The first was granted in 1982 and the most recent in June 1992. John J. Ewing ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list John J. Ewing in Lower Burrell, PA, US.

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5118335 Tempering ring design George R. Claassen, Robert G. Frank, Rudolph A. Karlo 1992-06-02 $20,039,000
4737182 Glass sheet press support and alignment systems Michael T. Fecik, Joseph C. Pavlik 1988-04-12 $8,376,000
4666492 Method and apparatus for shaping glass sheets Edward A. Thimons, Robert G. Frank, Michael T. Fecik, George R. Claassen, Samuel L. Seymour +1 more 1987-05-19 $1,953,000
4666496 Shuttling support frame for vacuum pickup Michael T. Fecik, Joseph C. Pavlik 1987-05-19 $1,953,000
4662925 Horizontal press bending of heat softened glass sheets Edward A. Thimons, Robert G. Frank, Michael T. Fecik, George R. Claassen, Samuel L. Seymour 1987-05-05 $8,796,000
4661139 Vacuum pressing of glass doublets Thomas J. Reese, Michael T. Fecik, Robert G. Frank, Terry A. Bennett 1987-04-28 $13,110,000
4579573 Forming glass sheets of specialized asymmetric configurations Michael T. Fecik 1986-04-01 $9,845,000
4556407 Tempering ring with pivoting glass sheet support member Michael T. Fecik, Robert G. Frank, Andrew C. Siminerio 1985-12-03 $4,392,000
4556408 Dual ring segmented block tempering ring Michael T. Fecik, Robert G. Frank 1985-12-03 $4,392,000
4539031 Apparatus for press shaping hot glass sheets Michael T. Fecik, Terry A. Bennett 1985-09-03 $2,394,000
4526605 Vacuum mold for shaping glass sheets Robert G. Frank, Michael T. Fecik 1985-07-02 $2,943,000
4525196 Glass sheet handling devices Michael T. Fecik, Edward I. Mates 1985-06-25 $6,450,000
4501603 Method and apparatus for shaping glass sheets to complicated shapes Robert G. Frank, Michael T. Fecik 1985-02-26 $1,931,000
4488892 Pivotal shaped auxiliary gas heater for glass sheet shaping molds Robert G. Frank, George R. Claassen 1984-12-18 $2,082,000
4487623 Method of and apparatus for removing sharply bent glass sheets from press bending molds George R. Claassen 1984-12-11 $2,543,000
4483702 Multiple chamber vacuum holder used to shape glass sheets with means to isolate adjacent vacuum chambers Robert G. Frank 1984-11-20 $1,293,000
4470835 Shaping sheets of glass or other deformable material to a complicated curvature Michael T. Fecik, Robert G. Frank, George R. Claassen 1984-09-11 $4,924,000
4430111 Method and apparatus to remove sharply bent, tempered glass sheets from a cooling station George R. Claassen 1984-02-07 $3,155,000
4430110 Shaping sheets of glass or other deformable material to a compound curvature Robert G. Frank, George R. Claassen, Michael T. Fecik 1984-02-07 $3,155,000
4331464 Glass sheet support of ring-like configuration George R. Claassen 1982-05-25 $1,455,000