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| Model Number | United States patents | Canadian patents |
| CLMM-5000B CLHM-125EXB CLHM-140 CLHM-190 | 7,219,770 9,352,944 9,656,843 10,486,950 | |
| CLHM-190W | 7,219,770 8,282,075 9,352,944 9,656,843 10,486,950 | |
| CML-7 CML-9 | 7,219,770 9,352,944 9,656,843 10,486,950 | |
| CML-9W | 7,219,770 8,282,075 9,352,944 9,656,843 10,486,950 | |
| MP-800-014 MP-800-018 | 7,219,770 9,352,944 9,656,843 10,486,950 | |
| WPLS-50B WPLS-125EXB WPLS-140 WPLS-190 | 7,219,770 9,352,944 9,656,843 10,486,950 | |
| WPLS-190W | 7,219,770 8,282,075 9,352,944 9,656,843 10,486,950 | |
| RTL-80A | 11,401,142 | |
| NLG140B NLG190B NLG125EXB | 7,219,770 9,352,944 9,656,843 10,486,950 | |
| NLG190WB | 7,219,770 8,282,075 9,352,944 9,656,843 10,486,950 |