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USPTO Patent Rankings Data through Dec 31, 2025
Home › Glasstech › Ronald A. McMaster
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Ronald A. McMaster — 25 Patents

GLGlasstech: 19 patents #6 of 71Top 9%
APAventis Pasteur: 1 patents #49 of 81Top 65%
GIGlasstech International: 1 patents #4 of 12Top 35%
Woodville, OH: #2 of 16 inventorsTop 15%
Ohio: #2,369 of 73,341 inventorsTop 4%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
Ronald A. McMaster has been granted 25 US patents while listed as an inventor at Glasstech. The first was granted in 1982 and the most recent in August 2006. Ronald A. McMaster ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Ronald A. McMaster in Woodville, OH, US.

Patents per Year

Patents granted per year, 1982 to 2006Bar chart with a peak of 4 patents in 1985.peak 41982: 1 patents19821983: 2 patents1984: 1 patents19841985: 4 patents1988: 1 patents19881989: 2 patents1990: 1 patents19901991: 2 patents1993: 2 patents19931995: 1 patents1999: 3 patents19992000: 1 patents2001: 1 patents20012002: 2 patents2006: 1 patents2006

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7086252 System and method for continuous forming of glass sheets — 2006-08-08
6425269 Method for glass sheet forming Michael J. Vild, Donivan M. Shetterly, Paul D. Ducat 2002-07-30
6422040 Method for forming glass sheets Michael J. Vild, Donivan M. Shetterly, Paul D. Ducat 2002-07-23
6295842 Uniform distribution quenching of formed glass sheets — 2001-10-02
6146902 Purification of polysaccharide-protein conjugate vaccines by ultrafiltration with ammonium sulfate solutions — 2000-11-14 $20,651,000
5968220 Process for modulated cryogenic quenching of glass sheets Kenneth R. Kormanyos 1999-10-19
5938808 Process for cryogenically quenching glass sheets Kenneth R. Kormanyos 1999-08-17
5931981 Process for quenching glass sheets with a cryogenic liquid and pressurized air Kenneth R. Kormanyos 1999-08-03
5403369 Apparatus and method for positioning glass sheets — 1995-04-04
5273568 Apparatus for performing high efficient symmetrical quenching of roller conveyed glass sheets Carl Kramer 1993-12-28
5230728 Method and apparatus for thermally stable mold assembly and support — 1993-07-27
5011525 Apparatus for high efficient symmetrical quenching of roller conveyed glass sheets — 1991-04-30
5004491 Glass sheet forming method and apparatus utilizing lower full surface vacuum mold and upper ring mold Donivan M. Shetterly 1991-04-02
4909819 Method for bending glass sheets Harold A. McMaster, Norman C. Nitschke, Dexter H. McMaster, Thomas E. Feehan 1990-03-20
4883527 Glass sheet bending and tempering apparatus Harold A. McMaster, Norman C. Nitschke, Dexter H. McMaster 1989-11-28
4822398 Glass bending and tempering apparatus Harold A. McMaster, Norman C. Nitschke, Dexter H. McMaster 1989-04-18
4725300 Glass sheet heating system including cradled roll conveyor — 1988-02-16
4525193 Method and apparatus for supplying cooling air in a glass sheet quench John S. Nitschke 1985-06-25
4517001 Apparatus for bending glass sheets — 1985-05-14
4515622 Glass sheet quench including oppositely angled jets Harold A. McMaster, Robert G. McMaster 1985-05-07
4512460 Glass sheet roller conveyor including antifriction drive chain — 1985-04-23
4470838 Composite blasthead for quench station of glass sheet tempering system Robert G. McMaster 1984-09-11
4421482 Conveyor roll for conveying heated glass sheets — 1983-12-20
4404011 Conveyor roll end cap — 1983-09-13
4341546 Roll drive mechanism for glass sheet processing equipment Norman C. Nitschke 1982-07-27

Frequent Collaborators

Harold A. McMaster4 shared
Norman C. Nitschke4 shared
Kenneth R. Kormanyos3 shared
Donivan M. Shetterly3 shared
Dexter H. McMaster3 shared
Robert G. McMaster2 shared

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