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National Gypsum — 125 Patents

Rank (All Time): #5,657 of 105,732Top 6%

61 inventors

125 Patents All Time

Patents per Year

Top Inventors at National Gypsum All Time

Showing 1–50 of 61 inventors

Rank	Name	Patents
1	Robert J. Menchetti	44
2	Robert M. Chapman	8
3	Daniel A. Winkowski	7
3	Edward A. Burkard	7
3	Joseph W. Schneller	7
#6	Ronald S. Finkelstein	6
#7	Arthur E. Kennedy	5
#7	Jashbhai M. Patel	5
#7	Matthew J. Kessler	5
#7	Richard E. Smith	5
#7	Robert M. Johnson	5
#7	Robert J. Pearson	5
#13	Donald A. Kossuth	4
#13	Edward J. Rutkowski	4
#13	Elmer M. Melling	4
#13	Salvatore R. Taravella	4
#17	Donald R. Kole	3
#17	Elisha Stav	3
#17	George J. Bean, Jr.	3
#17	George H. White	3
#17	Thomas R. Krowl	3
#17	W. Roy Burke	3
#23	Edmund J. Janicki	2
#23	Gerard T. Sowinski	2
#23	Herman C. Fraley	2
#23	J. Stephen Robinson	2
#23	James L. Zak	2
#23	John K. Hovind	2
#23	Joseph R. Robinette	2
#23	Larry W. Kingston	2
#23	Patrick J. Mudd	2
#23	Raymond G. Syracuse	2
#23	Richard P. Weir	2
#23	Steven D. Wing	2
#23	Walter E. Voisinet	2
#36	James J. Segada	1
#36	Carl R. Mapes	1
#36	Andrew E. Heuer	1
#36	David S. Prince	1
#36	Dennis F. Anders	1
#36	Donald P. Dahlman	1
#36	Donald J. Petersen	1
#36	Frank H. Campbell	1
#36	Grant F. Hess	1
#36	Jack A. Dawdy	1
#36	John L. Philips	1
#36	John L. Phillips	1
#36	Joseph Volk, Sr.	1
#36	Lambert J. Metz	1
#36	Marc-Andre Mathieu	1

Most Valuable Patents

Patent	Est. Value	Year
Folding track	$12M	1995
Wallboard bundling tape and method	$12M	1995
Wallboard protective edge tape for mounting board	$11M	1995
Shaft wall cavity extension	$11M	1995
Tapered edge board	$10M	1986

All 100 most valuable US patents →