All patents were assigned by their patentees to T. B. Clark & Company except those marked with an asterisk (*). These patents remained with the patentees.
Patent No. / Catalog or "Coined" Name / Patentee / Application Filed / Date Granted
16,720 / "Strawberry Diamond and Star" / Walter A. Wood / 12 Feb 1886 / 1 Jun 1886
18,621 / "Baker's Gothic" / Thomas A. Baker / 18 Aug 1888 / 25 Sep 1888
19,780 / "Pointed Star" / William Henry Hawken / 25 Feb 1890 / 29 Apr 1890
20,570 / "Maltese Cross" / John Billard / 3 Feb 1891 / 10 Mar 1891
21,466 / "Sea Shells" / Walter A. Wood / 12 Mar 1892 / 12 Apr 1892
30,086 / Waldorf / Thomas B. Clark / 3 Jan 1899 / 31 Jan 1899 (*)
32,150 / "Lapidary Center" / Thomas B. Clark / 30 Dec 1899 / 30 Jan 1900 (*)
For a discussion of the Waldorf and "Lapidary Center" patterns please see the rosecut.htm file in Part 4.
40,051 / "Cornflower" / Robert H. Pittman / 20 Apr 1909 / 15 Jun 1909
40,213 / Prima Donna / Thomas B. Clark / 9 Jun 1909 / 10 Aug 1909 (*)
63,795 / "Exotic Flower" / William P. Moran / 18 Jan 1923 / 15 Jan 1924
Updated 5 Feb 2005