~Individually Owned Patent |
532 |
435 |
401 |
360 |
295 |
2023 |
STEELCASE DEVELOPMENT CORPORATION |
23 |
20 |
14 |
10 |
6 |
73 |
CERTAIN-TEED CORPORATION |
8 |
5 |
5 |
6 |
4 |
28 |
OWENS-CORNING FIBERGLAS CORPORATION |
4 |
10 |
3 |
8 |
1 |
26 |
ULTRAFRAME (UK) LIMITED |
6 |
3 |
4 |
5 |
0 |
18 |
HERMAN MILLER INC. |
5 |
6 |
0 |
5 |
0 |
16 |
PERGO, AB |
0 |
1 |
6 |
4 |
5 |
16 |
SIMPSON STRONG-TIE COMPANY, INC. |
3 |
2 |
6 |
1 |
4 |
16 |
VKR HOLDING A/S |
3 |
3 |
6 |
1 |
3 |
16 |
HAWORTH, INC. |
5 |
3 |
4 |
0 |
1 |
13 |
USG INTERIORS, INC. |
3 |
3 |
1 |
6 |
0 |
13 |
VALINGE ALUMINUM AB |
2 |
1 |
2 |
2 |
5 |
12 |
NICHIHA CORPORATION |
4 |
2 |
2 |
2 |
1 |
11 |
PPG INDUSTRIES OHIO INC. |
3 |
4 |
0 |
2 |
2 |
11 |
WORTHINGTON ARMSTRONG VENTURE |
3 |
2 |
1 |
4 |
1 |
11 |
DORMA GMBH & CO. KG. |
1 |
5 |
2 |
2 |
0 |
10 |
HITACHI, LTD |
1 |
2 |
3 |
3 |
1 |
10 |
MITEK HOLDING, INC. |
3 |
5 |
0 |
2 |
0 |
10 |
RITE-HITE HOLDING CORPORATION |
3 |
2 |
1 |
0 |
4 |
10 |
DIETRICH INDUSTRIES, INC. |
1 |
2 |
0 |
5 |
1 |
9 |
HOHMANN BARNARD, INC. |
1 |
0 |
2 |
1 |
5 |
9 |
ILLINOIS TOOL WORKS INC. |
1 |
2 |
1 |
3 |
2 |
9 |
JOHNS MANVILLE INTERNATIONAL, INC. |
2 |
2 |
0 |
3 |
2 |
9 |
NICHIHA CO., LTD. |
1 |
2 |
5 |
0 |
1 |
9 |
ROYAL GROUP TECHNOLOGIES LIMITED |
0 |
2 |
2 |
2 |
3 |
9 |
BUILDING MATERIALS INVESTMENT CORPORATION |
1 |
0 |
0 |
4 |
3 |
8 |
HILTI AKTIENGESELLSCHAFT |
2 |
3 |
1 |
2 |
0 |
8 |
ARPAL ALUMINUM LTD. |
1 |
3 |
2 |
1 |
0 |
7 |
KRUEGER INTERNATIONAL, INC. |
0 |
1 |
1 |
3 |
2 |
7 |
NAN YA PLASTICS CORPORATION |
0 |
1 |
4 |
2 |
0 |
7 |
PLASTIC COMPONENTS, INC. |
3 |
1 |
0 |
3 |
0 |
7 |
RUBBERMAID INCORPORATED |
1 |
1 |
2 |
2 |
1 |
7 |
TAPCO INTERNATIONAL CORPORATION |
2 |
2 |
1 |
1 |
1 |
7 |
ANDERSEN CORPORATION |
1 |
2 |
1 |
1 |
1 |
6 |
CONSTRUCTION SPECIALTIES INC. |
0 |
3 |
2 |
1 |
0 |
6 |
CRANE PLASTICS COMPANY LIMITED PARTNERSHIP |
0 |
1 |
3 |
0 |
2 |
6 |
GEOMETRICA, INC. |
5 |
1 |
0 |
0 |
0 |
6 |
SOLATUBE INTERNATIONAL, INC. |
3 |
3 |
0 |
0 |
0 |
6 |
UNILIN BEHEER BV, BESLOTEN VENNOOTSCHAP |
0 |
1 |
0 |
2 |
3 |
6 |
AEGIS METAL FRAMING LLC |
0 |
4 |
1 |
0 |
0 |
5 |
CANON KABUSHIKI KAISHA |
3 |
1 |
1 |
0 |
0 |
5 |
CARDINAL IG COMPANY |
0 |
0 |
2 |
2 |
1 |
5 |
DAYTON SUPERIOR CORPORATION |
0 |
0 |
1 |
2 |
2 |
5 |
FISCHERWERKE ARTUR FISCHER GMBH & CO. KG |
1 |
1 |
0 |
1 |
2 |
5 |
FOSTER-MILLER, INC. |
1 |
2 |
1 |
0 |
1 |
5 |
GENERAL ELECTRIC COMPANY |
2 |
0 |
0 |
1 |
2 |
5 |
HENKEL CORPORATION |
3 |
1 |
1 |
0 |
0 |
5 |
INTERKAL, INC. |
3 |
1 |
0 |
0 |
1 |
5 |
L.B. (PLASTICS) LIMITED |
3 |
2 |
0 |
0 |
0 |
5 |
LOCKHEED MARTIN CORPORATION |
1 |
1 |
1 |
1 |
1 |
5 |
NIPPON STEEL CORP. |
2 |
0 |
1 |
2 |
0 |
5 |
PREMARK RWP HOLDINGS, INC. |
1 |
3 |
0 |
1 |
0 |
5 |
PRO SHOP PLANS CO., INC. |
1 |
1 |
2 |
0 |
1 |
5 |
SASHLITE, LLC. |
0 |
0 |
2 |
2 |
1 |
5 |
SOLITE CORPORATION |
1 |
1 |
1 |
1 |
1 |
5 |
SUPER SACK MANUFACTURING CORPORATION |
0 |
2 |
1 |
1 |
1 |
5 |
THE STEEL NETWORK, INC. |
0 |
0 |
1 |
2 |
2 |
5 |
UNITED STATES OF AMERICA, NAVY |
1 |
2 |
0 |
0 |
2 |
5 |
VALMONT INDUSTRIES INC. |
0 |
0 |
2 |
1 |
2 |
5 |
ZONE FOUR, LLC |
0 |
2 |
2 |
1 |
0 |
5 |