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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001537435-18-000008
Filing Date
2018-02-12
Accepted
2018-02-12 15:23:50
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G/A #4 tgen_20180123jnh13ga4.htm SC 13G/A 57299
  Complete submission text file 0001537435-18-000008.txt   58595
Mailing Address 85 FIRST AVENUE WALTHAM MA 02451
Business Address
HATSOPOULOS JOHN (Filed by) CIK: 0001274775 (see all company filings)

Type: SC 13G/A

Mailing Address 45 FIRST AVENUE WALTHAM MA 02451
Business Address 45 FIRST AVENUE WALTHAM MA 02451 781-466-6400
TECOGEN INC. (Subject) CIK: 0001537435 (see all company filings)

IRS No.: 043536131 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-88720 | Film No.: 18596034
SIC: 3585 Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip